Question

PLEASE SOLVE
Will mark as brainliest
Please no spamming.
Solve for second part of the question. Not the first part. ​

Answer 1

Answer

Wavelength ,   = 5.5 * 10⁻⁷

Frequency , f = ? Hz

Frequency is defined as reciprocal of wavelength .

⇒ c = f  λ

⇒ f  = c / λ  

⇒ f = (3*10⁸) / (5.5 * 10⁻⁷)

⇒ f = 5.45 * 10¹⁴

We know that wavelength in medium is equals to wavelength in air per refractive index

$\bold{\lambda_m=\frac{\lambda_a}{u} }\\\\\implies \bold{\lambda_g=\frac{\lambda_{mercury}}{u} }\\\\\implies \bold{\lambda_g=\frac{5.5*10^{-7}}{1.5} }\\\\\implies \bold{\lambda_g=366.9*10^{-9}\;m}$