Q9 of 61 Page 61

The angle of incidence at which the angle of refraction is 0° is called the critical angle.

false , Critical angle has angle of incidence 90°.

When an object is at the centre of curvature of concave mirror the image formed will be virtual and erect.

Light is one of the slowest travelling energy with a speed of 3 × 10^–8 ms^-1

The reason for brilliance of diamonds is mainly due to total internal reflection of light.

In going from a rarer to denser medium, the ray of light bends _______

Questions · 61

3. Light

1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 1 2 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 1 2 3 4 1 2 3 4 5 1 1 2 3