Light of wavelength in air enters a glass slab of refractive index

PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction

Problem

Light of wavelength

600\,\text{nm}

in air enters a glass slab of refractive index

1.5

. What will be its wavelength inside the glass? (a)

450\,\text{nm}

(b)

300\,\text{nm}

(c)

400\,\text{nm}

(d)

600\,\text{nm}