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
Light is a form of
  • A
    Energy
    Correct
  • B
    Mass
  • C
    Power
  • D
    Length
2
Splitting of white rays of light into seven colours is called
  • A
    Scattering of light
  • B
    Dispersion of light
    Correct
  • C
    Reflection of light
  • D
    Refraction of light
3
___________ help us to see the objects.
  • A
    Transparent objects
  • B
    Opaque objects
  • C
    Light
    Correct
  • D
    Reflection
4
In human eyes, image is formed on
  • A
    Retina
    Correct
  • B
    Eye lens
  • C
    Pupil
  • D
    Cornea
5
Object that emit light is called
  • A
    Transparent object
  • B
    Non-luminous object
  • C
    Opaque object
  • D
    Luminous object
    Correct
6
Which type of lens is present in our eyes?
  • A
    Concave lens
  • B
    Cylindrical lens
  • C
    Convex lens
    Correct
  • D
    Bifocal lens
7
Speed light is fastest in
  • A
    Diamond
  • B
    Glass
  • C
    Water
  • D
    Air
    Correct
8
Band of seven colours obtained on screen after dispersion is called
  • A
    Reflection
  • B
    Transparence
  • C
    Spectrum
    Correct
  • D
    Scattering
9
What is the name of object through which light can pass?
  • A
    Opaque
  • B
    Translucent
  • C
    Luminous
  • D
    Transparent
    Correct
10
Rainbow is a
  • A
    Natural spectrum
    Correct
  • B
    Illusion of eyes
  • C
    Man-made spectrum
  • D
    Beam of light
11
Which of the following travels faster?
  • A
    Jet Aero plane
  • B
    Supersonic plane
  • C
    Light
    Correct
  • D
    Sound
12
Braille system is used by
  • A
    African people
  • B
    Hearing impaired
  • C
    Blind people
    Correct
  • D
    Black people
13
_________ refers to collection of rays.
  • A
    Image
  • B
    Shadow
  • C
    Beam
    Correct
  • D
    Photon
14
Light always travels in straight line. This property is called
  • A
    Diversion of light
  • B
    Convergence of light
  • C
    Rectilinear propagation of light
    Correct
  • D
    Dispersion of light
15
What makes the object visible?
  • A
    Size
  • B
    Light
    Correct
  • C
    Colour
  • D
    Time