ICSE/ISC Std 7 Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1
Shaving mirror is a

(A) Convex lens	(B) Concave lens
(C) Convex mirror	(D) Concave mirror

Question-2
Focal length F =

(A) 2r	(B)
(C)	(D)

Question-3
Rear-view mirrors of a car is a

(A) Concave mirror	(B) Plane mirror
(C) Convex mirror	(D) Bi -concave mirror

Question-4
The radius of the hollow sphere of which the spherical mirror is part. is called

(A) Aperture	(B) Centre of curvature
(C) Radius of curvature	(D) Pole

Question-5
A body which does not allow light to pass through it is called

(A) A polisher surface	(B) Opaque body
(C) Transparent body	(D) Translucent body

Question-6
In a concave mirror, a ray parallel to the principal axis after reflection passes through the

(A) Principal focus	(B) Infinity
(C) Centre of curvature	(D) Pole of the mirror

Question-7
In a concave mirror, if the position of the object is at infinity then the image is

(A) at focus	(B) between focus and pole
(C) infinity	(D) at the centre of curvature

Question-8
In a concave mirror, the image formed at infinity when the object is at

(A) Infinity	(B) At focus
(C) At centre of curvature	(D) Between focus and pole

Question-9
A spherical mirror whose outer surface is the reflecting surface is called

(A) Concave mirror	(B) Convex mirror
(C) Plane mirror	(D) Spherical mirror

Question-10
The geometric centre of a spherical mirror is known as

(A) Principal axis	(B) Aperture
(C) Pole	(D) Focus

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Std 7

ICSE/ISC

Practice in Related Chapters
Reflection of Light
Light and Shadows
Heat
Sound
Measurement
Motion
Electricity