교과서 질문
One watt (W) is equal to 1 J/s. Assuming that 5.0% of the energy output of a 75 W light bulb is visible light and that the average wavelength of the light is 550 nm, how many photons are emitted by the light bulb each second?
912
views
1
rank
비슷한 문제에 대한 검증된 영상 답변: