Advertisements
Advertisements
Question
Name the spherical mirror which can produce a real and diminished image of an object.
Advertisements
Solution
Only a concave mirror can produce a real and diminished image of an object.
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?
Define the following term in the context of spherical mirrors:- Centre of curvature
Define the following term in the context of spherical mirrors:- Principal focus
Explain the following term related to spherical lenses: focal length
Name the spherical mirror which has:
(a) virtual principal focus.
(b) real principal focus.
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
Write true or false
A virtual image formed by a spherical mirror is always erect and situated behind the mirror.
How is the focal length of a spherical mirror related to its radius
Define the terms focus and focal length of a concave mirror. Draw diagram to illustrate your answer.
Write the spherical mirror's formula and explain the meaning of each symbol used in it.
What is meant by magnification? Write its expression. What is its sign for the (a) real (b) virtual, image?
Upto what maximum distance from the pole the image in a convex mirror can be obtained? what will be the location of object then ?
A real and enlarged image can be obtained by using a
The sun is seen before the sunrise and after the sunset.
Select the correct option:
A mirror forms a virtual image (diminished) of an object, whatever be the position of object:
Define the following term in relation to concave mirror.
Center of curvature
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:
Concave mirror
An object is placed in front of a concave mirror as shown in the following figure. By scale drawing, find the nature of the image. Given f = 10 cm, v = 30 cm.
Which of the following has curved reflecting surface?
Define focal length.
The radius of curvature of a spherical mirror is 18 cm. What is the focal length of this 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 ______.
