Advertisements
Advertisements
प्रश्न
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:
विकल्प
pass through its principal focus
pass through its centre of curvature
pass through its pole
retraces its path
Advertisements
उत्तर
pass through its principal focus
APPEARS IN
संबंधित प्रश्न
Write true or false of the following statement.
When a light ray is reflected from a wall, the angle of incidence is not equal to the angle of reflection.
Fill in the blank
A ________ image cannot be obtained on a screen.
The diagram in Fig. shows an incident ray AO and the reflected ray OB from a plane mirror. The angle AOB is 30°. Draw normal on the plane mirror at the point O and find:
What is meant by lateral inversion of an image in a plane mirror? Explain it with the help of a ray diagram.
The image formed by a plane mirror is :
An insect is sitting in front of a plane mirror at a distance 1 m from it.
(b) What is the distance between the insect and its image?
Two plane mirrors are placed making an angle θ° in between them. For an object placed in between the mirrors, if angle is gradually increased from 0° to 180°, how will the number of images change : increase, decrease or remain unchanged?
An object is placed (i) asymmetrically (ii) symmetrically, between two plane mirrors inclined at an angle of 50°. Find the number of images formed.
Parallel rays are incident:
- on regular surface and
- on irregular surface. In what respect do reflected rays in (1) differ from those of (2)?
