1.
If a mirror has a focal length of +15 cm it is
2.
The focal length of a plane mirror is
3.
In the question above, the angle between the reflected ray and the mirror is
5.
The relation between u, v and f for a mirror is given by:
6.
In case of a virtual and erect image, the magnification of a mirror is
7.
The sum of the reciprocals of object distance and image distance is equal to the _________ of a mirror.
8.
Choose the correct relation between u, v and r for a spherical mirror:
9.
In case of a real and inverted image, the magnification of a mirror is
10.
The mirror used in automobiles to see the rear field of view is
11.
The angle between the two refracting surfaces of a total reflecting prism is
12.
A virtual, erect and magnified image of an object is to be produced with a concave mirror of focal length 12 cm. Which of the following object distance should be chosen for this purpose?
13.
The mirror used in search lights is
14.
An incident ray strikes a plane mirror at an angle of 15° with the mirror. The angle between the incident ray and reflected ray is
15.
A mirror having a very wide field of view must be
16.
A real image, equal in size to the object, is obtained when the object is placed at the centre of curvature in front of a
17.
The magnification produced by a concave mirror
18.
For an object at infintiy, a concave mirror pro diocesan image at its focus which is
19.
If we say that the focal length of a spherical mirror is n times its radius of curvature, then n must be
20.
If a mirror has a focal length of - 20 cm , it is
