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Wavelength and Frequency Solutions Library

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170 solutions

Wavelength and Frequency

Q. Part A. A radio station's channel, such as 100.7 FM or 92.3 FM, is actually its frequency in megahertz (MHz), where 1 MHz = 10 Hz and 1 Hz = 1 s-1....

Solved • Jul 2, 2020

Wavelength and Frequency

Q. Part A. A microwave oven operates at 2.80 GHz. What is the wavelength of the radiation produced by this appliance? Express the wavelength numerical...

Solved • Jul 2, 2020

Wavelength and Frequency

Q. In the PhET simulation window, click on the Visible button to access a light source with the wavelength complying with visible light. Be sure to tu...

Solved • Jul 2, 2020

Wavelength and Frequency

Q. In the PhET simulation window, the following light spectrum is provided. (Access it by clicking on the gold Show Light Spectrum button in the botto...

Solved • Jul 2, 2020

Wavelength and Frequency

Q. Which wavelength of light has the highest frequency? a) 10 nmb) 10 mmc) 1 nmd) 1 mm

Solved • Jun 16, 2020

Wavelength and Frequency

Q. Calculate the frequency of each of the following wavelengths of electromagnetic radiation.a) 488.0 mm (wavelength of argon laser)v1=b) 12.24 cm (wa...

Solved • Mar 23, 2020

Wavelength and Frequency

Q. What are the frequency and energy of a photon with a wavelength of 527 nm?

Solved • Mar 17, 2020

Wavelength and Frequency

Q. A line in the spectrum of an element was observed to have a frequency of 5.17 × 10 14 s-1. What is the wavelength of this radiation?a. 5.80 × 10 -7...

Solved • Oct 8, 2019

Wavelength and Frequency

Q. Calculate the wavelength of a red light photon in nanometers if the frequency is 4.6 × 1014 Hz?

Solved • Sep 18, 2019

Wavelength and Frequency

Q. What is the wavelength (in nm) of the light emitted by a bar code scanner that has a frequencyof 4.62 x 1014 s-1?a. 6.49 x 10-16 nmb. 6.49 x 10-7 n...

Solved • Sep 14, 2019

Wavelength and Frequency

Q. When the frequency of light is doubled the wavelength is ___________?a. doubledb. halvedc. unchangedd. none of the above

Solved • Sep 14, 2019

Wavelength and Frequency

Q. An FM radio station broadcasts electromagnetic radiation at a frequency of 99.7 MHz. What is the wavelength of this radiation? A) 3.01 m B) 3.01 × ...

Solved • Sep 13, 2019

Wavelength and Frequency

Q. What is the frequency of light with a wavelength of 0.440  μm? A) 6.81 x 1014 sec-1 B) 7.28 x 1014 sec-1 C) 6.81 x 1011 sec-1 D) 5.93 x 1011 sec-1 ...

Solved • Aug 6, 2019

Wavelength and Frequency

Q. Calculate the frequency of 12.24 cm (wavelength of microwave oven) Express your answer using three significant figures.

Solved • Aug 5, 2019

Wavelength and Frequency

Q. The wavelength of the yellow light is 580.0 nm. What is the frequency of the yellow light?

Solved • Aug 2, 2019

Wavelength and Frequency

Q. 337.1 nm (wavelength of a nitrogen laser)Express your answer using three significant figures.V3 = ___

Solved • Aug 2, 2019

Wavelength and Frequency

Q. The wavelength of some orange light is 620.0 nm. What is the frequency of this orange light?

Solved • Aug 2, 2019

Wavelength and Frequency

Q. Light travels at a speed of 2.998×108 m/s in a vacuum.What distance does electromagnetic radiation travel in 0.44 ps ?

Solved • Nov 12, 2018

Wavelength and Frequency

Q. A green laser pointer emits light with a wavelength of 533 nm. What is the frequency of this light?

Solved • Nov 12, 2018

Wavelength and Frequency

Q. A popular kitchen appliance produces electromagnetic radiation with a frequency of 2450 MHz., Estimate the wavelength of this radiation.

Solved • Nov 12, 2018

Wavelength and Frequency

Q. A popular kitchen appliance produces electromagnetic radiation with a frequency of 2450 MHz.With reference to the figure below ,answer the followin...

Solved • Nov 12, 2018

Wavelength and Frequency

Q. A laser pointer used in a lecture hall emits light at 650 nm.What is the frequency of this radiation?

Solved • Nov 12, 2018

Wavelength and Frequency

Q. Light travels at a speed of 2.998×108 m/s in a vacuum.What is the frequency of radiation whose wavelength is 0.82 nm ?

Solved • Nov 12, 2018

Wavelength and Frequency

Q. Moseley established the concept of atomic number by studying X-rays emitted by the elements. The X-rays emitted by some of the elements have the fo...

Solved • Nov 12, 2018

Wavelength and Frequency

Q. Consider the two waves shown here, which we will consider to represent two electromagnetic radiations.What is the wavelength of wave A?

Solved • Nov 12, 2018

Wavelength and Frequency

Q. The rays of the Sun that cause tanning and burning are in the ultraviolet portion of the electromagnetic spectrum. These rays are categorized by wa...

Solved • Nov 12, 2018

Wavelength and Frequency

Q. A laser dazzles the audience in a rock concert by emitting green light with a wavelength of 527 nm . Calculate the frequency of the light.

Solved • Nov 12, 2018

Wavelength and Frequency

Q. Calculate the wavelength of each of the following frequencies of electromagnetic radiation.102.6 MHz (typical frequency for FM radio broadcasting)

Solved • Nov 12, 2018

Wavelength and Frequency

Q. The speed of sound in air is 344 m/s at room temperature. The lowest frequency of a large organ pipe is 30 s-1 and the highest frequency of a picco...

Solved • Nov 12, 2018

Wavelength and Frequency

Q. The distance from the sun to Earth is 1.496×108 km. How long does it take light to travel from the sun to Earth?

Solved • Nov 12, 2018

Wavelength and Frequency

Q. Calculate the frequency of each of the following wavelengths of electromagnetic radiation.632.8 nm (wavelength of red light from a helium-neon laser)

Solved • Nov 12, 2018

Wavelength and Frequency

Q. The laser on a Blu-ray player has a wavelength of 405 nm. In what region of the electromagnetic spectrum is this radiation? What is its frequency?

Solved • Oct 22, 2018

Wavelength and Frequency

Q. FM-95, an FM radio station, broadcasts at a frequency of 9.51 × 10 7 s−1 (95.1 MHz). What is the wavelength of these radio waves in meters?

Solved • Oct 22, 2018

Wavelength and Frequency

Q. An FM radio station found at 103.1 on the FM dial broadcasts at a frequency of 1.031 × 108 s−1 (103.1 MHz). What is the wavelength of these radio w...

Solved • Oct 22, 2018

Wavelength and Frequency

Q. One reason carbon monoxide (CO) is toxic is that it binds to the blood protein hemoglobin more strongly than oxygen does. The bond between hemoglob...

Solved • Oct 18, 2018

Wavelength and Frequency

Q. Police often monitor traffic with “K-band” radar guns, which operate in the microwave region at 22.235 GHz (1 GHz = 109 Hz). Find the wavelength (i...

Solved • Oct 17, 2018

Wavelength and Frequency

Q. An FM station broadcasts music at 93.5 MHz (megahertz, or 10 6 Hz). Find the wavelength (in m, nm, and Å) of these waves.

Solved • Oct 17, 2018

Wavelength and Frequency

Q. An AM station broadcasts rock music at “950 on your radio dial.” Units for AM frequencies are given in kilohertz (kHz). Find the wavelength of the ...

Solved • Oct 17, 2018

Wavelength and Frequency

Q. Photosynthesis uses 660-nm light to convert CO 2 and H2O into glucose and O 2. Calculate the frequency of this light.

Solved • Oct 16, 2018

Wavelength and Frequency

Q. A carbon–oxygen double bond in a certain organic molecule absorbs radiation that has a frequency of 6.0 x 1013 s-1. What is the wavelength of this ...

Solved • Oct 16, 2018

Wavelength and Frequency

Q. Human color vision is “produced” by the nervous system based on how three different cone receptors interact with photons of light in the eye. These...

Solved • Oct 15, 2018

Wavelength and Frequency

Q. Octyl methoxycinnamate and oxybenzone are common ingredients in sunscreen applications. These compounds work by absorbing ultraviolet (UV) B light ...

Solved • Oct 15, 2018

Wavelength and Frequency

Q. An FM radio station broadcasts at 99.5 MHz. Calculate the wavelength of the corresponding radio waves.

Solved • Oct 15, 2018

Wavelength and Frequency

Q. The laser in an audio CD player uses light with a wavelength of 7.80 x 10  2 nm. Calculate the frequency of this light.

Solved • Oct 15, 2018

Wavelength and Frequency

Q. How many photons are produced in a laser pulse of 0.580 J at 637 nm?

Solved • Oct 5, 2018

Wavelength and Frequency

Q. Microwave ovens emit microwave energy with a wavelength of 13.0 cm. What is the energy of exactly one photon of this microwave radiation? 

Solved • Oct 5, 2018

Wavelength and Frequency

Q. The frequency of the middle F note on a piano is 349.23 Hz. What is the wavelength of this note in centimeters? The speed of sound in air is 343.06...

Solved • Oct 4, 2018

Wavelength and Frequency

Q. Be sure to answer all parts. The blue color of the sky results from the scattering of sunlight by molecules in the air. The blue light has a freque...

Solved • Oct 3, 2018

Wavelength and Frequency

Q. Part AX-ray photons with a wavelength of 0.135 nm. Express the energy numerically in kilojoules per mole. Part Bγ-ray photons with a wavelength of ...

Solved • Sep 19, 2018

Wavelength and Frequency

Q. Be sure to answer all parts.What is the wavelength (in nm) of radiation that has an energy content of 4.35 x 103 kJ/mol? 

Solved • Sep 13, 2018

Wavelength and Frequency

Q. Part A104.1 MHz (typical frequency for FM radio broadcasting) Express your answer in joules using four significant figures. Part B1045 MHz (typical...

Solved • Sep 11, 2018

Wavelength and Frequency

Q. The wavelength of some violet light is 420.0 nm. What is the frequency of this violet light?

Solved • Sep 7, 2018

Wavelength and Frequency

Q. 632.8 nm (wavelength of red light from a helium-neon laser) Express your answer using three significant figures. v1 =                         s  -1

Solved • Sep 7, 2018

Wavelength and Frequency

Q. What are the wavelengths, in nanometers, of the bright lines of the hydrogen emission corresponding to the transition: n = 5 to n = 2.

Solved • Aug 13, 2018

Wavelength and Frequency

Q. The energy of a photon of light is given by E = hv. The frequency, v, of light and the wavelength, λ, are related through: v = c/λ where c is the s...

Solved • Aug 13, 2018

Wavelength and Frequency

Q. The energy of light calculated using the formulas below tell you the energy per photon of light. E = h x v E = h x c / λ If light has a wavelength ...

Solved • Aug 13, 2018

Wavelength and Frequency

Q. If the radio waves transmitted by a radio station have a frequency of 76.0 MHz, what is the wavelength of the waves, in meters?

Solved • Aug 13, 2018

Wavelength and Frequency

Q. Be sure to answer all parts.What is the frequency (in reciprocal seconds) of electromagnetic radiation with a wavelength of 1.43 cm?Enter your answ...

Solved • Aug 9, 2018

Wavelength and Frequency

Q. Be sure to answer all parts.The blue color of the sky results from the scattering of sunlight by molecules in the air. The blue light has a frequen...

Solved • Aug 9, 2018

Wavelength and Frequency

Q. For light with a wavelength of 8.20 μm, calculate the corresponding wave number value.  

Solved • Jul 10, 2018

Wavelength and Frequency

Q. The wavelength of some red light is 700.5 nm. What is the frequency (s -1) of this red light? 

Solved • Jun 18, 2018

Wavelength and Frequency

Q. How long does it take (in minutes) for light to reach Venus from the Sun, a distance of 1.117 times 10^6 km?

Solved • May 16, 2018

Wavelength and Frequency

Q. A photon of light has a frequency of 3.26 x 10 15 hertz. What is its wavelength? The speed of light is 2.998 x 108 m/s. a. 9.78 x 1014 nm b. 109 nm...

Solved • May 2, 2018

Wavelength and Frequency

Q. The wavelength of the red light is 700.5 nm. What is the frequency of red light?

Solved • Apr 5, 2018

Wavelength and Frequency

Q. A 1.00 mL ampule of a 0.150 M solution of naphthalene in hexane is excited with a flash of light. The naphthalene emits 19.9 J of energy at an aver...

Solved • Apr 2, 2018

Wavelength and Frequency

Q. The energy of a photon that has a wavelength of 9.0 m is _____ J. a. 2.2 x 10-26 b. 4.5 x 1025 c. 6.0 x 10-23 d. 2.7 x 109 e. 4.5 x 10-25

Solved • Apr 2, 2018

Wavelength and Frequency

Q. Calculate the frequency of visible light having a wavelength of 486 nm. a. 2.06 x 1014 s-1 b. 2.06 x 106 s-1 c. 6. 17 x 1014 s-1  d. 1.20 x 10-15 s...

Solved • Apr 2, 2018

Wavelength and Frequency

Q. Calculate the frequency (Hz) and energy (J/photon) of visible light with a wavelength of 325nm.

Solved • Mar 30, 2018

Wavelength and Frequency

Q. The wavelength of the green light is 530.0 nm. What is the frequency of green light?

Solved • Mar 26, 2018

Wavelength and Frequency

Q. Which of the following occur as the energy of a photon increases?a. The frequency decreases.b. The speed increases.c. The wavelength increases.d. T...

Solved • Mar 23, 2018

Wavelength and Frequency

Q. How much energy is contained in 1 mol of each of the following? a. X-ray photons with a wavelength of 0.135 nm. Express the energy numerically in k...

Solved • Mar 19, 2018

Wavelength and Frequency

Q. The wavelength of some blue light is 470.0 nm. What is the frequency of this blue light?

Solved • Mar 16, 2018

Wavelength and Frequency

Q. Calculate the frequency of each of the following wavelengths of electromagnetic radiation.a. 488.0 nm (wavelength of argon laser)b. 503 nm (wavelen...

Solved • Mar 15, 2018

Wavelength and Frequency

Q. Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies. Express your answer using four significant figu...

Solved • Mar 13, 2018

Wavelength and Frequency

Q. Calculate the wavelength of each of the following frequencies of electromagnetic radiation. Express your answer using four significant figures.a. 1...

Solved • Mar 13, 2018

Wavelength and Frequency

Q. Calculate the wavelength of each of the following frequencies of electromagnetic radiation.a. 101.9 MHZ (typical frequency for FM radio broadcastin...

Solved • Mar 13, 2018

Wavelength and Frequency

Q. Use equation c=vλ and c=3.00 x 10 8 m/s to convert a wavelength of 3.5 x 10 -7 m to frequency (s-1).

Solved • Mar 7, 2018

Wavelength and Frequency

Q. The human eye contains a molecule called 11-cis-retinal that changes conformation when struck with light of sufficient energy. The change in confor...

Solved • Feb 26, 2018

Wavelength and Frequency

Q. Ionization involves completely removing an electron from an atom. Light of a particular wavelength can cause ionization to occur if it has the requ...

Solved • Feb 23, 2018

Wavelength and Frequency

Q. How many photons are produced in a laser pulse of 0.528 J at 679 nm? 

Solved • Feb 20, 2018

Wavelength and Frequency

Q. Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies.i) 102.3 mHz (typical frequency for FM radio bro...

Solved • Feb 19, 2018

Wavelength and Frequency

Q. How many photons are contained in a flash of green light (525 nm) that contains 189 kJ of energy?

Solved • Feb 19, 2018

Wavelength and Frequency

Q. Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies (in J).i) 103.7 MHz (typical frequency for FM ra...

Solved • Feb 19, 2018

Wavelength and Frequency

Q. Calculate the energy of a photon of electromagnetic radiation at each of the following wavelengths.i) 632.8 nm (wavelength of red light from helium...

Solved • Feb 15, 2018

Wavelength and Frequency

Q. Hospital X-ray generators emit X rays with wavelength of about 15.0 nm, where 1 nm = 10 -9 m. What is the energy of a photon in an X ray? Express a...

Solved • Feb 2, 2018

Wavelength and Frequency

Q. Green light has a frequency of about 6.00 x 10 14 s-1 . What is the energy of a photon of green light?(4 sig. fig)E = J 

Solved • Jan 4, 2018

Wavelength and Frequency

Q. Where h = 6.626 x 10 -34 J s ( Planck's constant ) and c = 2.99 x 10 8 m/s. What is the wavelength of a photon that has an energy of E = 4.13 x 10-...

Solved • Dec 15, 2017

Wavelength and Frequency

Q. The energy of a photon of light is given by E = hv. The frequency, v, of light and the wavelength, λ, are related through: v = c/λ where c is the s...

Solved • Dec 14, 2017

Wavelength and Frequency

Q. What is the wavelength of light if the energy of a photon is 3.65 x 10  -19 J? A) 545 nm B) 5.45 x 10-7 nm C) 1.84 x 106 nm D) 5.51 x 1014 nm ...

Solved • Nov 10, 2017

Wavelength and Frequency

Q. A laser pulse produces 1.046 kJ of energy. It was experimentally determined that the pulse contains 3.50 x 1022 photons. Determine the wavelength o...

Solved • Nov 10, 2017

Wavelength and Frequency

Q. What is the wavelength (m) of light that has a frequency of 1.20 x 10 13 s-1 a) 2.50 x 10-5 b) 25.0  c) 0.0400  d) 4.00 x 104 e) 2.5

Solved • Aug 24, 2017

Wavelength and Frequency

Q. What is the energy (J) of a photon of a 1 km radio wave? a) 1 x 10-25 b) 1 x 10-28 c) 2 x 10-25 d) 2 x 10-28 e) 5 x 10-25

Solved • Aug 24, 2017

Wavelength and Frequency

Q. It takes 238 kJ/mol to break a carbon-iodine bond. Calculate the frequency of light for which one carbon-iodine bond could be broken by absorbing a...

Solved • Aug 24, 2017

Wavelength and Frequency

Q. What is the energy (in kJ/mol) of red photons with a frequency equal to 4.00 x 10  14 Hz? A. 5.30 x 102 B. 1.60 x 102 C. 480 x 102 D. 480 x 1...

Solved • Aug 17, 2017

Wavelength and Frequency

Q. Calculate the frequency of visible light having a wavelength of 686 nm. A) 4.37 x 1014 /s B) 4.37 x 105 /s C) 2.06 x 102 /s D) 2.29 x 10-15 /s ...

Solved • Aug 15, 2017

Wavelength and Frequency

Q. An ultraviolet (UV) light photon has a wavelength of 124.1 nm. What is its energy in joules?

Solved • Jul 27, 2017

Wavelength and Frequency

Q. One type of ultraviolet light has a wavelength of 223 nm. Calculate the energy of one photon of this light.a. 8.91 x 10 -19 Jb. 6.95 x 10 -19 Jc. 7...

Solved • Jul 13, 2017

Wavelength and Frequency

Q. What is the wavelength of a beam of light having a frequency of 6 × 10  17 Hz? 1. 1.8 × 10 21 nm 2. 2 nm 3. 0.5 nm 4. 50 nm

Solved • Jun 22, 2017

Wavelength and Frequency

Q. My microwave operates at a wavelength of 300.0 mm (note units). What is the energy of a mole of photons generated by this microwave? The value of P...

Solved • Jun 16, 2017

Wavelength and Frequency

Q. A line in the spectrum of an element was observed to have a frequesncy of 5.17 x 1014 s -1 . What is the wavelength of this radiation?a. 5.80 x 10-...

Solved • Jun 16, 2017