Andhra Pradesh (English Medium) Std 8 Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1
The velocity of light in vacuum is

(A) 2x10⁸m/s	(B) 3x10⁸m/s
(C) 4x10⁸m/s	(D) 5x10⁸m/s

Question-2
The image formed by a plane mirror is

(A) Real	(B) Virtual
(C) Inverted	(D) No image formation

Question-3
According to the law of reflection

(A) Angle of incidence > Angle of Reflection	(B) Angle of incidence < Angle of Reflection
(C) Angle of incidence = Angle of Reflection	(D) No relation between Angle of incidence and Angle of Reflection

Question-4
The bending of light is called

(A) Reflection	(B) Diffraction
(C) Dispersion	(D) Refraction

Question-5
The geometric centre of a spherical mirror is called its

(A) Centre of curvature	(B) Principal axis
(C) Pole	(D) Focus

Question-6
Objects which do not allow light through them are called

(A) Transparent Objects	(B) Opaque Objects
(C) Luminous objects	(D) Non Luminous Objects

Question-7
Mirror which is used as reflector in head lights of vehicles

(A) Concave	(B) Convex
(C) Plane	(D) All the above

Question-8
An instrument used in submarines to see objects on the surface of water, like ships is

(A) Stethoscope	(B) Microscope
(C) Kaleidoscope	(D) Periscope

Question-9
The bouncing back of light after hitting on an object

(A) Reflection	(B) Refraction
(C) Diffraction	(D) Interference

Question-10
The point, where all the reflected rays meet after reflecting from a cocave mirror is called

(A) . Pole	(B) Optic centre
(C) Focus	(D) Centre of curvature

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Std 8

Andhra Pradesh (English Medium)

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