The value of (10^22+10^20)/10^20 is ___.
Question 7
The value of 1022+10201020 is (a) 10 (b) 1042 (c) 101 (d) 1022
A 100 Watt bulb emits monochromatic light of wavelength 400 nm. Calculate the number of photons emitted per second by the bulb.