A light source of wavelength 520 nm emits 1.04 x 1015 photons per second while the second source of 460 nm produces 1.38 x 1015 photons per second. Then the ratio of power of second source to that of first source is ……… .
A. 1.00
B. 1.02
C. 1.5
D. 0.98
Answer:C
A light source of wavelength 520 nm emits 1.04 x 1015 photons per second while the second source of 460 nm produces 1.38 x 1015 photons per second. Then the ratio of power of second source to that of first source is ……… .
A. 1.00 B. 1.02 C. 1.5 D. 0.98