Ray Optics - Recapitulation

Ray Optics - Recapitulation

by Vikram Kasana

Open Ended

What is reflection of light?

Open Ended

What are the laws of reflection?

Poll

Angle of reflection for a ray of light incident normally to a  plane mirror is 

• 90 degree

• 0 degree

• same as angle of incident

• None of these

Open Ended

For the same value of angle of incidence, the angles of refraction in three media A, B and  C are 15°, 25° and 35° respectively. In which medium would the velocity of light be  minimum?

Open Ended

Light travelling at a speed of $$3\times10^8$$  m/s through the vacuum of outer space fall on the  thick glass windows of a space shuttle. The glass has an absolute refractive index of 1.5.  What is the speed of light through glass?