Practice: Even the music we listen to deals with how energy travels to get to our car radio. If an FM Radio station broadcasts its music at 97.7 MHz find the wavelength in angstroms of the radio waves. One angstrom is equal to 10^{-10} m.

Subjects

Sections | |||
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Wavelength and Frequency | 4 mins | 0 completed | Learn |

Speed of Light | 8 mins | 0 completed | Learn |

The Energy of Light | 13 mins | 0 completed | Learn |

Electromagnetic Spectrum | 11 mins | 0 completed | Learn Summary |

Photoelectric Effect | 14 mins | 0 completed | Learn Summary |

De Broglie Wavelength | 9 mins | 0 completed | Learn |

Heisenberg Uncertainty Principle | 14 mins | 0 completed | Learn |

Bohr Model | 15 mins | 0 completed | Learn |

Emission Spectrum | 6 mins | 0 completed | Learn |

Bohr Equation | 13 mins | 0 completed | Learn Summary |

Introduction to Quantum Mechanics | 5 mins | 0 completed | Learn Summary |

Quantum Numbers: Principal Quantum Number | 4 mins | 0 completed | Learn |

Quantum Numbers: Angular Momentum Quantum Number | 7 mins | 0 completed | Learn |

Quantum Numbers: Magnetic Quantum Number | 5 mins | 0 completed | Learn |

Quantum Numbers: Spin Quantum Number | 2 mins | 0 completed | Learn |

Quantum Numbers: Number of Electrons | 4 mins | 0 completed | Learn |

Quantum Numbers: Nodes | 3 mins | 0 completed | Learn |

Additional Practice |
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Diffraction vs Refraction |

Quantum Numbers: Emission Spectrum |

Dimensional Boxes |

The **Speed of Light** in a vacuum is related to the wavelength and frequency of a light particle.

Example #1: Calculate the frequency of the red light emitted by a neon sign with a wavelength of 663.8 nm.

Practice: Even the music we listen to deals with how energy travels to get to our car radio. If an FM Radio station broadcasts its music at 97.7 MHz find the wavelength in angstroms of the radio waves. One angstrom is equal to 10^{-10} m.

Practice: The distance between the earth and the sun is 1.496 x 10^{17} μm. How long (in mins) will it take for light to go from the sun to earth?

Practice: When they are burned, certain elements emit light at a specific wavelength. Some wavelengths for certain elements are provided below:

When burned, an unknown element emits light at a frequency of 9.23 x 10^{14} s^{-1}. What is the identity of this unknown element?

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Determine the wavelength (in nm) of an X-ray with a frequency of 4.2 × 10 18Hz.
a. 7.1 × 10 –11
b. 7.1 × 10 –2
c. 1.3 × 10 27
d. 1.4 × 10 10
e. 7.1 × 10 –18

What is the frequency of a 534 nm photon?
1. 6.04e+14
2. 5.56e+14
3. 6.98e+14
4. 4.29e+14
5. 5.21e+14
6. 4.76e+14
7. 5.8e+14
8. 4.17e+14
9. 4.91e+14
10. 5.62+14

Ham radio operators often broadcast on the 6-meter band. The frequency of this electromagnetic radiation is __________ MHz.
a) 50
b) 20
c) 2.0
d) 200
e) 500

Many small appliances and electronics operate in the microwave region. If your television operates at a 21.25 GHz, then what is the wavelength in nm?

The wavelength of light with a frequency of 3.30 × 10 14 s −1 is
1. 450 nm.
2. 909 nm.
3. 200 nm.
4. 650 nm.

Most of the light emitted by excited mercury atoms has wavelengths of 185, 254, 365, 436, 546 and 615 nm. Which one of the following frequencies is emitted by mercury atoms?
A) 1.4 x 1014 s-1
B) 4.1 x 1014 s-1
C) 8.2 x 1014 s-1
D) 8.2 x 1015 s-1
E) 4.1 x 1015 s-1

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

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
E) 2.29 x 10-6 /s

What is the wavelength of yellow light (in nanometers) having a frequency of 5.17 x 1014 s-1?a) 3.84 x 10-31 mb) 5.80 x 10-7 mc) 1.72 x 10-6 md) 5.80 x 102 me) 1.72 x 104 m

What is the frequency of ultraviolet radiation having a wavelength or 46.3 nanometers?a) 1.54 x 10-14 s-1b) 6.47 x 1015 s-1c) 1.54 x 10-16 s-1d) 6.47 x 1013 s-1e) 1.18 x 10-7 s-1

(a) What is the frequency of radiation whose wavelength is 10.0 Å?

(b) What is the wavelength of radiation that has a frequency of 7.6 x 10 10 s-1?

(d) What distance does electromagnetic radiation travel in 25.5 fs?

An argon ion laser emits light at 532 nm. What is the frequency of this radiation? Using Figure 6.4, predict the color associated with this wavelength.

(a) A red laser pointer emits light with a wavelength of 650 nm. What is the frequency of this light?

If you put 120 volts of electricity through a pickle, the pickle will smoke and start glowing an orange-yellow color. The light is emitted because the sodium ions in the pickle become excited; their return to the ground state results in light emission (see Figure 6.13b and Sample Exercise 6.3). (a) The wavelength of this emitted light is 589 nrn. Calculate its frequency.

Calculate the frequency of the red light emitted by a neon sign with a wavelength of 659.9 nm.
A) 4.55 ×1014 s-1
B) 1.98 ×1014 s-1
C) 3.32 ×1014 s-1
D) 5.05 ×1014 s-1
E) 2.20 ×1014 s-1

Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye. The frequency of this light is __________ s-1.A) 1.58 ×1011B) 5.71 ×105C) 1.75 ×10-15D) 5.71 ×1014E) 1.58 ×102

What is the frequency of the medical X-ray at 0.052 nm?

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 10-7 metersb. 1.72 x 106 metersc. 1.55 x 1023 metersd. 1.77 x 10-4 meterse. 174 meters

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

Calculate the wavelength of each of the following frequencies of electromagnetic radiation.a. 101.9 MHZ (typical frequency for FM radio broadcasting)Delta1 = m?b. 1020 KHZ (typical frequency for AM radio broadcasting) (assume four significant figures) Delta = m?c. 835.6 MHZ (common frequency used for cell phone communication) Express your answer using four significant figures.Delta3 = m?

Calculate the wavelength of each of the following frequencies of electromagnetic radiation. Express your answer using four significant figures.a. 1045 kHz (typical frequency for AM radio broadcasting) (assume four significant figures)b. 835.6 MHz (common frequency used for cell phone communication)

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

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-1 e. 4.86 x 10-7 s-1

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

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?

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

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

Calculate the frequency of the green light emitted by a hydrogen atom with a wavelength of 486.1 nm.A) 6.17 ×1014 s-1B) 1.46 ×1014 s-1C) 4.33 ×1014 s-1D) 1.62 ×1014 s-1E) 6.86 ×1014 s-1

Calculate the wavelength (in nm) of the blue light emitted by a mercury lamp with a frequency of 6.88 ×1014 Hz.A) 229 nmB) 206 nmC) 436 nmD) 675 nmE) 485 nm

Calculate the wavelength (in nm) of the red light emitted by a neon sign with a frequency of 4.74 ×1014 Hz.A) 704 nmB) 158 nmC) 466 nmD) 142 nmE) 633 nm

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 c. 1.09 x 10 7 nm d. 978 nm e. 92.0 nm

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

Calculate the frequency of each of the following wavelengths of electromagnetic radiation.a. 488.0 nm (wavelength of argon laser)b. 503 nm (wavelength of maximum solar radiation)c. 0.0520 nm (a wavelength contained in medical X-rays)

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

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