Advertisements
Advertisements
प्रश्न
What should be the minimum size of a plane mirror, so that a person 182 cm high can see himself completely?
उत्तर
Size (height) of a person = 182 cm
We know to see the full length image of a person, we need a plane mirror of size as half of the size of the person.
So, size of plane mirror required
= `"Height of person"/2`
= `182/2`
= 91 cm
APPEARS IN
संबंधित प्रश्न
A man standing in front of a plane mirror finds his image at a distance 6 metre from himself. What is the distance of man from the mirror?
An object is placed (i) asymmetrically (ii) symmetrically, between two plane mirrors inclined at an angle of 50°. Find the number of images formed.
Draw a neat two ray diagram for the formation of images in two plane mirrors, when mirrors are at right angles to each other.
Draw a neat two ray diagram for the formation of images in two plane mirrors, when mirrors are at facing each other.
An insect is sitting in front of a plane mirror at a distance of one meter from it.
- Where is the image of insect formed?
- What is the distance between insect and its image?
- State any two characteristics of image formed in a plane mirror.
Select the correct option:
A ray of light is incident on a concave mirror. If it is parallel to principal axis, the reflected ray will:
