Multiple Choice
Electromagnetic radiation with a wavelength of 641 nm appears as orange light to the human eye.The energy of one photon of this light is 3.10 × J.Thus,a laser that emits
of energy in a pulse of light at this wavelength produces ________ photons in each pulse.
A) 2.4 ×
B) 6.3 × 10-24
C) 2.7 ×
D) 4.2 ×
E) 6.5 ×
Correct Answer:

Verified
Correct Answer:
Verified
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