Light of velocity 3 x 10⁸ms^-1 is incident on a material of reflective of index n. If the velocity of light is reduced to 2.4 x 10⁸ms^-1 in the material, what is n?

Similar Questions

Which expression gives magnetic flux? ...

A gas at a volume of V$_{0}$ in a container at pressure p$_{0}$ is compressed to one-fifth of it...

A uniform meter rule weighing 0.5N is to be pivoted on a knife-edge at the 30cm-mark. where will a f...

A moving-coil meter with an internal resistance of 100Ω has a full-scale deflection when a cur...

Dispersion occurs when white light passes through a glass prism because of the? ...

An electric current of 3Aflowing through an electric heating elements of resistance 20 embedded in 1...

Alcohol of mass 21g and density 0.7g cm-3 is mixed with 10g of water. Determine the density of the m...

Calculate the energy stored in a 20$\mu F$ capacitor. If the p.d between the plates is 40V...

The material used to slow down the neutrons in a nuclear reactor is    ...

An object is embedded in a block of ice, 10 cm below the plane surface. if the refractive index of t...