Advertisements
Advertisements
प्रश्न
Define the following terms :
Incident ray, Refracted ray, Angle of incidence, Angle of refraction.
Advertisements
उत्तर
INCIDENT RAY AB: The ray light AB which is in air strikes the glass slab at B.
Or
“A ray of light falling on the surface separating the two media.”
REFRACTED RAY BK: A ray of light which after passing the first medium is in second medium i.e. ray BK.
“A ray of light travelling in other medium in the changed direction.”
ANGLE OF INCIDENCE: “The angle which the incident ray makes with the normal is called angle of incidence.”
i.e. ∠i
ANGLE OF REFRACTION: “The angle which the refracted ray makes with the normal is called angle of refraction.”
i.e. ∠r
APPEARS IN
संबंधित प्रश्न
A virtual image formed by a spherical mirror is always erect and situated behind the mirror.
A concave mirror forms a virtual image for an object placed ...............................
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?
Distinguish between real and virtual image.
The image formed by a pinhole camera is inverted because,
A boy of height 1m 45 cm is standing in front of a long mirror at a distance of 2 m. From this information, fill up the following sentences:
- The distance between the boy and his image is ______
- The height of the image is______
- When the boy moves 1m forward, the distance between her and her image is______
The image which can be obtained on a screen is called ______.
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 |
Distinguish between real & virtual images.
