BITSAT 2016 Paper

Section: Physics

Question : 17 of 150

Marks: +1, -0

Find the number of photon emitted per second by a 25 watt source of monochromatic light of wavelength 6600Å. What is the photoelectric current assuming 3% efficiency for photoelectric effect ?

25
3
×1019J,0.4amp
25
4
×1019J,6.2amp
25
2
×1019J,0.8amp
None of these

Validate

Go to Question:

Prev Question

Next Question