A light ray of frequency ' $v$ ' and wavelength ' $\lambda$ ' enters a liquid of refractive index…
A light ray of frequency ' $v$ ' and wavelength ' $\lambda$ ' enters a liquid of refractive index $\frac{3}{2}$
The ray travels in the liquid with
frequency $v$ and wavelength $\left(\frac{1}{2}\right) \lambda$
frequency $v$ and wavelength $\left(\frac{2}{3}\right) \lambda$
frequency $\left(\frac{3}{2}\right) v$ and wavelength $\lambda$.
frequency $v$ and wavelength $\left(\frac{3}{2}\right) \lambda$
Solution
The problem involves a light ray of frequency $\nu$ and wavelength $\lambda$ entering a liquid of refractive index
$n$. The refractive index affects the wavelength of the light as it enters the liquid, but the frequency remains unchanged. The wavelength in the liquid is given by:
$\lambda_{\text {liquid }}=\frac{\lambda_0}{n}$
where $\lambda_0$ is the wavelength in the air or vacuum, and $n$ is the refractive index of the liquid.
So, the light ray will travel in the liquid with the same frequency and a shortened wavelength.
Thus, the correct answer is:
(2) frequency and wavelength
.