Wavelength and Frequency Video Lessons

Concept: The Electromagnetic Spectrum

# Problem: How many photons are produced in a laser pulse of 0.528 J at 679 nm?

###### FREE Expert Solution
• Since we have a value for wavelength, we will use the equation E=hv where E is energy, h is Planck's constant and v as frequency.

• Frequency (v) can be solved by dividing the speed of light c by the wavelength in meters: v = c/λ

###### Problem Details

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

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Our tutors rated the difficulty ofHow many photons are produced in a laser pulse of 0.528 J at...as medium difficulty.

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Based on our data, we think this problem is relevant for Professor Brydges' class at UCSD.