Advertisements
Advertisements
प्रश्न
Name one main factor on which the direction of bending of a ray of light depends.
Advertisements
उत्तर
It mainly depends upon the optical density of the two media through which a ray of light travels.
संबंधित प्रश्न
Write a short note on dispersion of light.
How is the refractive index of a medium related to the speed of light in it?
The diagram alongside shows the refraction of a ray of light from air to a liquid.
- Write the values of (i) angle of incidence, (ii) angle of refraction.
- Use Snell’s law to find the refractive index of liquid with respect to air.
Fill in the blanks to complete the following sentence
When light travels from a denser to a rarer medium, its speed ……………….
Fill in the blank to complete the following sentence:
When light travels from a rarer to a denser medium, it bends ...........
In the fig., PO is a ray of light incident on a rectangular glass block.
(a) Complete the path of the ray through the block.
(b) 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?
(c) Mark angle of emergence by the letter e. How are the angles i and e related?
(d) Which two rays are parallel to each other? Name them.
(e) Indicate in the diagram the lateral displacement between the emergent ray and the incident ray.
Name the phenomenon responsible in the following case:
Apparent bending of a stick in water
What is the refractive index of water
The refractive index of air with respect to glass is defined: as gµa = sin i/sin r
If r = 90°, what is the corresponding angle i called?
A glass block is having refractive index 3/2, the light ray is incident at an angle 45°. Find the sine of the angle of, refraction inside the glass block.
