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What is the time period of visible light for which human eye is most sensitive?(a) 1.85 × 10^15 s(b) 1.85 × 10^-15 s(c) 3 × 10^8s(d) 5 × 10^16 sThis question was addressed to me in unit test.This key question is from Electromagnetic Waves topic in section Electromagnetic Waves of Physics – Class 12

Answer»

The CORRECT answer is (b) 1.85 × 10^-15 s

Explanation: T = \(\frac {1}{V}\)

T = \(\frac {\LAMBDA }{c}\)

T = 5550 × \(\frac {10^{-10}}{3}\) × 10^8

T = 1.85 × 10^-15 s.


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