Advertisements
Advertisements
Question
A person is looking at the image of a tree in a mirror placed 3.5 m in front of him. Given that the tree is at 0.5 m behind his eyes. Find the distance between the image of the tree and his eyes. What are needed to see an object?
Advertisements
Solution

Distance between the person and the mirror = 3.5 m
Distance between the person and tree (object) = 0.5 m
The image formed in the mirror = 4 m
The distance between the image of the tree and his eyes = 4 + 3.5 = 7.5
APPEARS IN
RELATED QUESTIONS
A virtual image formed by a spherical mirror is always erect and situated behind the mirror.
The angle of incidence for a ray of light passing through the centre of curvature of a spherical mirror is ...........
Define the following terms :
Incident ray, Refracted ray, Angle of incidence, Angle of refraction.
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?
What is a real image? Name the mirror which can be used to obtain the real image of an object. What should be the position of the object relative to the mirror?
Distinguish between real and virtual image.
Say TRUE or FALSE
The image of right hand in a plane mirror looks like a left hand
Figure shows a pencil placed above a mirror

- Draw its image formed by the mirror
- Show how light rays from the object are reflected at the mirror to form the image for the eye.
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 |
Magnification for the ______ image is always ______.
