Reflection — Set 2
Physics · परावर्तन · Questions 11–20 of 70
An object is 30 cm in front of a plane mirror. The distance between the object and its image is?
If the angle of incidence is 35°, the angle between the incident ray and reflected ray is?
A real image formed by a mirror is always?
In a spherical mirror, the principal focus lies on the?
A smooth and polished surface produces mainly?
The unit commonly used for sound intensity level is?
A person hears an echo 0.4 s after shouting. If speed of sound is 340 m/s, the distance to the reflecting wall is approximately?
During reflection of light from a mirror, which quantity remains unchanged?
The point on a spherical mirror where the principal axis meets the mirror surface is called the?
The angle between the incident ray and the normal to the surface at the point of incidence is called?