Test: Spherical Mirror

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Description

This mock test of Test: Spherical Mirror for Class 10 helps you for every Class 10 entrance exam. This contains 5 Multiple Choice Questions for Class 10 Test: Spherical Mirror (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Spherical Mirror quiz give you a good mix of easy questions and tough questions. Class 10 students definitely take this Test: Spherical Mirror exercise for a better result in the exam. You can find other Test: Spherical Mirror extra questions, long questions & short questions for Class 10 on EduRev as well by searching above.

QUESTION: 1

A spherical mirror in which silver coating is done on the inner surface is

A.
Plano convex
B.
Concave
C.
Plano concave
D.
Convex

Solution:

Convex Mirror is a curved mirror where the reflective surface bulges out towards the light source. Silver coating is done inside the mirror.

QUESTION: 2

Which mirror is used to concentrate the light on a given spot ?

A.
Concave mirror
B.
Convex mirror
C.
Plane mirror
D.
All of the above mirrors

Solution:

A concave mirror, or converging mirror, has a reflecting surface that is recessed inward. Concave mirrors reflect light inward to one focal point, they are used to focus light.

QUESTION: 3

A man standing in front of a special mirror finds his image having a very small head, a fat body and legs of normal size. The shapes of the three parts of the special mirror are

A.
Top – Concave; Middle – Plane; Bottom – Convex
B.
Top – Plane; Middle – Concave; Bottom – Convex
C.
Top – Convex; Middle – Concave; Bottom – Plane
D.
Top – Concave; Middle – Convex; Bottom – Plane

Solution:

QUESTION: 4

The name and radius of curvature of a spherical mirror whose focal length is +2 cm is

A.
-4 cm; convex
B.
+4 cm; concave
C.
-4 cm ; Concave
D.
+4 cm; Convex

Solution:

Radius of curvature ( R) = 2* Focal length (f)
Since, f=+2 cm, therefore, R= 2*(+2) = +4 cm
If it is a convex mirror, since it's focal length is positive.

QUESTION: 5

The concave mirrors are used in

A.
Reflecting telescopes
B.
Magic lanterns
C.
Cinema projectors
D.
All the above

Solution:

A reflecting telescope uses concave mirror as they produce images similar to the images produce by convex lenses ie. , upright and smaller than the object.
The magic lantern uses a concave mirror in back of a light source to direct as much of the light as possible through a small rectangular sheet of glass.
Concave mirrors project a beam of light outward, which is required in a cinema projector.