A wave of the wavelength 5900 Å emitted by an atom or molecule must have some finite total length which is known as coherence length. For the mentioned wave, this length is 2 . 4 cm . The number of oscillations in this length will be

Question

A wave of the wavelength 5900 Å emitted by an atom or molecule must have some finite total length which is known as coherence length. For the mentioned wave, this length is 2 . 4 cm . The number of oscillations in this length will be, 4.068 × 10 8, 4.068 × 10 4, 4.068 × 10 6, 4.068 × 10 5

MARKS App · Accepted Answer

Number of oscillations in coherence length l λ = 0 .024 5900 × 10 - 10 = 40677.9 = 4.068 × 10 4

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