Class 8 Light CBSE Questions & Answers

Class 8 · Light

This is Science Class 8 Light CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Mirror reflection gives us
  • A
    Dotted image
  • B
    Different image
  • C
    Clear image
    Correct
  • D
    Dim image
2
Angle of incidence is always
  • A
    Equal to angle of refraction
  • B
    Equal to angle of reflection
    Correct
  • C
    More than angle of reflection
  • D
    Less than angle of reflection
3
From a source light travels as rays which are
  • A
    Parallel
    Correct
  • B
    Diffused
  • C
    Convergent
  • D
    Divergent
4
Normal is
  • A
    Perpendicular to surface
    Correct
  • B
    Convergent to surface
  • C
    Parallel to surface
  • D
    Oblique to surface
5
In a plane mirror image formed is
  • A
    Virtual and inverted
  • B
    Real and erect
  • C
    Virtual and erect
    Correct
  • D
    Real and inverted
6
In regular reflection
  • A
    Reflected rays are parallel to each other
    Correct
  • B
    Reflected rays are not parallel to each other
  • C
    All of the above
  • D
    Reflected rays are perpendicular to each other
7
A number of rays from different direction assemble at point are called
  • A
    Parallel rays
  • B
    Divergent rays
  • C
    Convergent rays
    Correct
  • D
    Intersecting rays
8
The angle of reflection is equal to the angle of incidence
  • A
    Sometimes
  • B
    Always
    Correct
  • C
    Never
  • D
    Under special case
9
Light travels in which direction?
  • A
    Parallel line
  • B
    Curved line
  • C
    Straight line
    Correct
  • D
    Angular line
10
Which of the following object will produce regular reflection?
  • A
    Wooden table
  • B
    Mirror
    Correct
  • C
    Black painted surface
  • D
    Smooth wall
11
If you stand before a plane mirror, your left hand appears right. This phenomenon is
  • A
    Lateral inversion
    Correct
  • B
    Shadow formation
  • C
    Reflection of light
  • D
    Diffusion of light
12
Which of the following have reflecting surface?
  • A
    Lens
  • B
    Thin plastic
  • C
    Shallow water
  • D
    Mirror
    Correct
13
__________ refers to collection of rays.
  • A
    Beam
    Correct
  • B
    Shadow
  • C
    Photon
  • D
    Image
14
Which of the following substance change the direction of light?
  • A
    Thin plastic sheet
  • B
    Water
  • C
    Lens
  • D
    Mirror
    Correct
15
Real image is always
  • A
    Parallel
  • B
    Inverted
    Correct
  • C
    Diminished
  • D
    Erect