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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Principal focus
A ray of light is incident on a plane mirror at an angle of 30°. What is the angle of reflection
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
What is the nature of spherical mirror?
A diverging lens is used in:
(a) a magnifying glass
(b) a car to see objects on rear side
(c) spectacles for the correction of short sight
(d) a simple camera
State the kind of mirror used
(a) By a dentist,
(b) As a search-light reflector.
The image formed by a convex mirror is of size one third the size of object. How are u and v related?
Find the height of the image of a body of height 1.5m in a mirror with a magnification of 1.5.
An object 10 cm high is placed at a distance of 20 cm in front of a spherical mirror of focal length 25 cm. By scale drawing find the nature, position, and magnification of the image in the following case:
Convex mirror
In normal adjustment, for a refracting telescope, the distance between objective and eye piece is 30 cm. The focal length of the objective, when the angular magnification of the telescope is 2, will be ______.
