Advertisements
Advertisements
प्रश्न
The refractive index of a transparent medium is always greater than ______.
Advertisements
उत्तर
The refractive index of a transparent medium is always greater than one.
APPEARS IN
संबंधित प्रश्न
Define the following terms used in the study of reflection of light by drawing a labelled ray-diagram:
(a) Incident ray
(b) Point of incidence
(c) Normal
(d) Reflected ray
(e) Angle of incidence
(f) Angle of reflection
A man stands 10 m in front of a large plane mirror. How far must the walk before he is 5 m away from his image?
State two effects caused by the refraction of light.
A ray of light travelling in air is incident on a rectangular glass block and emerges out into the air from the opposite face. Draw a labelled ray diagram to show the completer path of this ray of light. Mark the two points where the refraction of light takes place. What can you say about the final direction of ray of light?
What do you understand by refraction of light?
A light ray suffers reflection and refraction at the boundary in passing from air to water. Draw a neat labelled ray diagram to show it.
Why does a ray of light bend when it travels from one medium to another?
The refractive index of four substances A, B, C, and D are 1.31, 1.43, 1.33, 2.4 respectively. The speed of light is maximum in
The angle of incidence for a ray of light having zero reflection angle is ______.
The bottom of swimming pool appears to be less deep than the actual one because of
