An instrument which enables us to see distant objects clearly is

  • microscope
  • telescope
  • kaleidoscope
  • periscope

The band of colored light which make up white light is called

  • spectrum of light
  • band of light
  • rainbow
  • white light colors

The primary colors of light includes

  • red
  • green
  • blue
  • all of them

The beam of light can be

  • straight
  • divergent
  • convergent
  • all of them

Glass, tracing paper are

  • transparent
  • translucent
  • opaque
  • semi-absorbent

The ray which is striking the surface is

  • normal ray
  • incident ray
  • reflected ray
  • all of them

Mirror which have inner surface like a sphere is called

  • convex mirror
  • concave mirror
  • plane mirror
  • cosmetic mirror

The part of human eye which is sensitive to red, blue and green light is

  • retina
  • lens
  • cornea
  • vision

A beam of light is made up of bundle of

  • rays
  • droplets
  • clusters
  • groups

The bending of light sometimes give us wrong impression of

  • depths
  • heights
  • volume
  • shape

Convex mirror produces image which is

  • virtual
  • upright
  • diminished
  • all of them

Materials which do not allow any light to pass through them are called

  • transparent
  • translucent
  • opaque
  • semi-absorbent

Light travels at different speeds in different

  • medium
  • situations
  • amount
  • objects

The line which is at right angle to the surface is called

  • normal ray
  • incident ray
  • reflected ray
  • all of them

In case of glass the ray of light bends towards

  • normal ray
  • incident ray
  • reflected ray
  • no ray

In case of extended source of light the shadow is mostly composed of darker region called

  • umbra
  • penumbra
  • screen
  • source

Bakelite is an

  • transparent
  • translucent
  • opaque
  • semi-absorbent

When the light falls on an object it can be

  • reflected
  • transmitted
  • absorbed
  • all of them

The bouncing off or returning of light after striking a surface is called

  • reflection
  • refraction
  • transmission
  • mirror

Fluid which reflects all the colors of white light is

  • water
  • milk
  • orange juice
  • vinegar
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