Advertisements
Advertisements
प्रश्न
If an object is at infinity (very large distance) in front of a concave mirror, where is the image formed?
उत्तर
If an object is at infinity and in front of a concave mirror, the image is formed at the focus.
APPEARS IN
संबंधित प्रश्न
An object is placed at a distance of 12 cm in front of a concave mirror of radius of curvature 30 cm. List four characteristics of the image formed by the mirror.
A ray of light is incident on a plane mirror making an angle of 90° with the mirror surface. The angle of reflection for this ray of light will be:
(a) 45°
(b) 90°
(c) 0°
(d) 60°
Copy this figure in your answer book and show the direction of the light ray after reflection:
The angle of incidence for of light passing through the centre of curvature of a concave mirror is:
(a) 45°
(b) 90°
(c) 0°
(d) 180°
An object is placed at a distance of 10 cm from a concave mirror of focal length 20 cm.
Calculate the image distance.
When an object is placed at a distance of 15 cm from a concave mirror, its image is formed at 10 cm in front of the mirror. Calculate the focal length of the mirror.
If the radius of curvature of a concave mirror is 20 cm, its focal length is:
A concave mirror of focal length 20 cm forms an image having twice the size of object. For the virtual position of object, the position of object will be at ______.
An image formed by a lens is erect. Such an image could be formed by a
What is a concave and convex mirror?
