MCQ
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
  • A
    $\frac{n}{\mu }\,,\,\frac{\lambda }{\mu },\,\frac{v}{\mu }$
  • $n,\frac{\lambda }{\mu },\frac{v}{\mu }$
  • C
    $n\,,\,\lambda \,,\,\frac{{\rm{v}}}{\mu }$
  • D
    $\frac{n}{\mu }\,,\,\,$$\frac{\lambda }{\mu }\,,\,v$

Answer

Correct option: B.
$n,\frac{\lambda }{\mu },\frac{v}{\mu }$
b
(b) Frequency does not change with medium but wavelength and velocity decrease with the increase in refractive index.

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