Solved

Photon Energy: a Light Beam from a 2

Question 19

Multiple Choice

Photon energy: A light beam from a 2.1-mW He-Ne laser has a wavelength of 633 nm. How many photons does the laser emit in one second? (h = 6.626 × 10-34 J ∙ s, c = 3.00 × 108 m/s)


A) 6.7 × 1015
B) 8.8 × 1015
C) 1.1 × 1016
D) 1.3 × 1016

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q14: Uncertainty principle using ΔEΔt ≥ ħ: A

Q15: Bohr atom: A hydrogen atom initially in

Q16: Uncertainty principle using ΔEΔt ≥ ħ/2: A

Q17: Matter waves: A nonrelativistic electron and a

Q18: Uncertainty principle using ΔEΔt ≥ ħ/2: The

Q20: Matter waves: Electrons emerge from an electron

Q21: Uncertainty principle using ΔxΔp ≥ ħ: A

Q22: Photoelectric effect: When a certain metal is

Q23: Blackbody radiation: A perfectly black sphere 18.0

Q24: Uncertainty principle using ΔpΔx ≥ h/2: A