Advertisements
Advertisements
Question
Name the kind of mirror used to obtain
(a) a real and enlarged image
(b) a virtual and enlarged image
(c) a real and diminished image, and
(d) a virtual and diminished image.
Advertisements
Solution
a) Concave
b) Concave
c) Concave
d) Convex
APPEARS IN
RELATED QUESTIONS
A 4 cm tall object is placed on the principal axis of a convex lens. The distance of the object from the optical centre of the lens is 12 cm and its sharp image is formed at a distance of 24 cm from it on a screen on the other side of the lens. If the object is now moved a little away from the lens, in which way (towards the lens or away from the lens) will he have to move the screen to get a sharp image of the object on it again? How will the magnification of the image be affected?
Give one use each of a concave and a convex mirror.
A ray of light strikes a plane mirror at an angle of 40° to the mirror surface. What will be the angle of reflection?
State the kind of mirror used
(a) by a dentist, and
(b) as a street light reflector.
Three mirrors are created from a single sphere. Which of the following - pole, centre of curvature, radius of curvature, principal axis - will be common to them and which will not be common?

Select the correct option:
A concave mirror is made by cutting a portion of a hollow glass sphere of radius 30 cm. The focal length of the concave mirror is:
Select the correct option:
Looking into a mirror one finds her image diminished, the mirror is:
In the following figure shows a concave mirror with its pole (P), focus (F) and centre of curvature (C). Draw a ray diagram to show the formation of the image of an object AB by the concave mirror.

If the focal length of a spherical mirror is 10 cm, what is the value of its radius of curvature?
