NEET UG PHYSICS MCQ: WAVES

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Application +4 | -1

The waves of wavelength

5900\,\mathop \mathrm{A}\limits^ \circ

emitted by any atom or molecule must have some finite total length which is known as coherence length. For sodium light, this length is 2.4 cm. The number of oscillations in this length will be

View answer and explanation

Correct option: B

4.068 \times {10^4}

Option B (

4.068 \times {10^4}

) is correct because it represents the number of oscillations calculated by dividing the coherence length by the wavelength.

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