The speed of light in glass is ` 2.0 xx 10^(8) ms ^(-1)`. Does it violate the second postulate of special relativity ?

(a) The refractive index of glass is 1.5. What is the speed of light in glass? ("Speed of light in vacuum is "3.0 xx 10^(8) m s^(-1)) (b) Is the speed of light in glass independent of the colour of light? If not, which of the two colours red and violet travels slower in a glass prism?

The absolute refractive index of a medium is 2.0. The speed of light in vacuum/air is 3 xx 10^(8) m s^(-1) . Find the speed of light in the medium.

Velocity of light in air is 3 xx 10^8 m//s and in glass its velocity is 2 xx 10^(8) m//s so for glass angle of polarisation is ......

A remote - sensing satellite of earth revolves in a circular orbit at a height of 0.25 x 106 m above the surface of earth. It earth's radius is 6.38 xx 10^(6)m and g = 9.8 ms^(- 2) , then the orbital speed of the satellite is ..........

A light body is projected with a velocity (10hat(i)+20 hat(j)+20 hat(k)) ms^(-1) . Wind blows along X-axis with an acceleration of 2.5 ms^(2) . If Y-axis is vertical then the speed of particle after 2 second will be (g=10 ms^(2))

If the speed of light in a medium is 200 xx 10^6" m"//"s" , then refractive index of medium is ...... [C = 3 xx 10^8" m"//"s"]

In a hydrogen atom, the electron is moving in a circular orbit of radius 5.3 xx 10^(-11) m with a constant speed of 2.2 xx 10^(6) ms^(-1) . The electric current formed due to the motion of electron is ......