Question

5) wave no \( (\bar{v}) \) of a wave is \( 8200 cm ^{-1} \). Find wavelength and Frequenls.

Answer 1

Given-

wave number= 8200/cm = 82/m

To find-

1. Wavelength=

λ=1/wave no. 

λ= 1/82 m

λ=0.0121 m 

λ= 1.21×10^(-2) m

2. Frequency=

ν = c/λ

ν = (3*10^(8)m/s) / (1.21*10^(-2)m)

ν = 2.47×10^(10)/s