Light MCQ question and answer with solution | Physics Gk MCQs

The optical phenomenon that is responsible for the propagation of light signal through an optical fibre is

For the myopic eye, the defect is cured by

Light enters the eye through a thin membrane called

A concave lens always forms

Choose the correct statement.

Which of the following lens is used to minimize Myopia?

The deviation angle is the lowest.

Consider the following statements.
1. Light of longer wavelength is scattered much more than the light of shorter wavelength.
2. The speed of visible light in water is 0.95 times the speed in vacuum.
3. Radio waves are produced by rapidly oscillating electrical currents.
4. To detect the overspeeding vehicles, police use the Doppler effect of reflected short radio waves.
Which of these statements are correct?

The focal length of the lens of a normal human eye is about

The materials through which objects can be seen but not clearly are called . . . . . . . . materials