1.
If a mirror has a focal length of +15 cm it is
2.
If we say that the focal length of a spherical mirror is n times its radius of curvature, then n must be
3.
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
4.
The relation between u, v and f for a mirror is given by:
5.
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?
6.
In the question above, the angle between the reflected ray and the mirror is
7.
The angle between the two refracting surfaces of a total reflecting prism is
8.
In case of a virtual and erect image, the magnification of a mirror is
9.
In case of a real and inverted image, the magnification of a mirror is
10.
The magnification produced by a concave mirror
11.
Choose the correct relation between u, v and r for a spherical mirror:
12.
The sum of the reciprocals of object distance and image distance is equal to the _________ of a mirror.
13.
A mirror having a very wide field of view must be
14.
The mirror used in automobiles to see the rear field of view is
15.
The mirror used in search lights is
16.
The focal length of a plane mirror is
17.
If a mirror has a focal length of - 20 cm , it is
18.
For an object at infintiy, a concave mirror pro diocesan image at its focus which is
19.
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
