Advertisements
Advertisements
प्रश्न
The angle between the normal and refracted ray is called
विकल्प
angle of deviation
angle of incidence
angle of refraction
the angle of emergence.
Advertisements
उत्तर
angle of refraction
APPEARS IN
संबंधित प्रश्न
Rays of light incident parallel to the principal axis pass through the focus after reflection from a concave mirror.
Define the following terms :
Incident ray, Refracted ray, Angle of incidence, Angle of refraction.
A ray of light falls normally on a glass slab. What is the angle of incidence?
The diagram in figure shows a ray of light AO falling on a rectangular glass slab PQRS. Complete the diagram till the ray of light emerges out of the slab. Label on the diagram the incident ray, the refracted ray and the emergent ray.
Name the mirror which always forms an erect and virtual image. What is the size of the image as compared to that of the object?
A lens always forms an image between the object and the lens. State three characteristics of the image.
Say TRUE or FALSE
The image formed in a pinhole camera is always inverted
The images that are obtained on a screen are called ______ and that which cannot be obtained on a screen ______.
Match the following:
| 1. | Real image | a. | Diffuse reflection |
| 2. | Virtual image | b. | An optical device which produces reflection |
| 3. | Mirror | c. | Cannot be taken on screen |
| 4. | A type of light scattering | d. | Can be taken on screen |
Calculate the number of images formed by plane mirrors kept at an angle of 10° to each other.
