question_answer

Electromagnetic radiation of frequency n, wavelength \[\lambda \], travelling with velocity v in air, enters a glass slab of refractive index \[\mu \]. The frequency, wavelength and velocity of light in the glass slab will be respectively [CBSE PMT 1997]

A)            \[\frac{n}{\mu }\,,\,\frac{\lambda }{\mu },\,\frac{v}{\mu }\]           

B)            \[n,\frac{\lambda }{\mu },\frac{v}{\mu }\]

C)            \[n\,,\,\lambda \,,\,\frac{\text{v}}{\mu }\]                

D)            \[\frac{n}{\mu }\,,\,\,\]\[\frac{\lambda }{\mu }\,,\,v\]