Tag: reflection of light and shadow

$20 \mathrm { cm }$ infront of the mirror

$20 \mathrm { cm }$ behind the mirror

The separation between new converging point and previous converging point is $40 \mathrm { cm } $

None of the above

$\delta _ { 1 } = 0 ^ { \circ }$

$\delta _ { 1 } = 100 ^ { \circ }$ clockwise

$\delta _ { 1 } = 100 ^ { \circ }$ anticlockwise

$\delta _ { 1 } = 280 ^ { \circ }$ clockwise

Difference between amount of light absorbed by the surface and amount of light reflected.

The amount of light reflected by a surface is known as reflectance.

The ratio of the amount of the light reflected from a surface to the amount of light falling on the surface is called reflectance.

The ratio of amount of light falling on a surface to the amount of light reflected on the surface is called reflectance.

angle of incidence

angle of reflection

angle of refraction

none of the above

All of

Part of

None of

Can't be determined