Advertisements
Advertisements
प्रश्न
Fill in the blanks to complete the following sentence
The refractive index of glass with respect to air is 3/2. The refractive index of air with respect to glass will be ……………….
Advertisements
उत्तर
The refractive index of glass with respect to air is 3/2. The refractive index of air with respect to glass will be 2/3
संबंधित प्रश्न
Explain how the formation of a rainbow occurs.
In the adjacent diagram, AO is a ray of light incident on a rectangular glass slab.
- Complete the path of the ray till it emerges out of the slab.
- In the diagram, mark the angle of incidence (i) and the angle of refraction (r) at the first interface. How is the refractive index of glass related to the angles i and r?
- Mark angles of emergence by the letter e. How are the angles i and e related?
- Which two rays are parallel to each other? Name them.
- Indicate in the diagram the lateral displacement between the emergent ray and the incident ray. State one factor that affects the lateral displacement.
What do you understand by the statement the refractive index of glass is 1.5 for white light?
A ray of light passes from water to air. How does the speed of light change?
Which colour of light travels fastest in any medium except air?
During sunset and sunrise, the sun is seen when it is slightly below the horizon. Give reason.
Can the absolute refractive index of a medium be less than one?
What do you understand by the deviation produced by a prism?
Explain with the help of a diagram of how fish is able to see the objects above it.
A coin placed at the bottom of a beaker appears to be raised by 4.0 cm. If the refractive index of water is 4/3, find the depth of the water in the beaker.
