Question

The wave emitted by any atom or molecule must
have some finite total length which is known as the
coherence length. For sodium light, this length is
2.4cm. The number of oscillations in this length
will be Given lamda = 5900A°)
1) 4.068 x 104 Hz
2) 4.068 x 10ʻHz
3) 4.068 x 106 Hz
4) 4.068 x 10 Hz

Answer 1

♊♊YOUR ANSWERS♍♍

✍4.068 × 10^5 Hz

════════════════════

EXPLANATION —

Number of oscillations in coherence length.

nλ = L

⇒n = L/λ

⇒n = 0.024/(5.9 × 10^¯7) Hz

⇒n = 4.0677 × 10^5 Hz

n ≈ 4.068 × 10^5 Hz

╒══════════════════════╕

❤ ‌ ‌‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ Thanks‌ ,hope you like it ! ‌ ‌ ‌‌ ‌ ‌ ❤

╘══════════════════════╛