Olympiad – Class VI – Science - Phy - Light, Shadows & Reflections

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Question - 1

Which of the following objects does not emit light of its own?

  • A The sun
  • B The star
  • C The moon
  • D A Firefly

Question - 2

The following are the sources of light.
(i) A glow worm
(ii) An electric bulb
(iii) The stars
Which of the given sources emit light naturally?

  • A Only (i) and (ii)
  • B Only (ii) and (iii)
  • C Only (i) and (iii)
  • D All the above

Question - 3

Which of the following absorbs light the most?

  • A A mirror
  • B A piece of white paper
  • C A black wallet
  • D A green leaf

Question - 4

Identify translucent objects given in the box.
(i) Ground glass
(ii) Ice
(iii) Wood

  • A Only (i) and (ii)
  • B Only (ii) and (iii)
  • C Only (i) and (iii)
  • D All the above

Question - 5

How does light travel?

  • A Rectilinear propagation
  • B Random motion
  • C Curvilinear motion
  • D Circular motion

Question - 6

Which of the following emits light?

  • A A book
  • B A glow worm
  • C A bat
  • D A rat

Question - 7

Why does an opaque object form a shadow when placed in the path of light?

  • A Because light gets reflected
  • B Because the opaque object does not allow light to pass through it
  • C Because the opaque object acts as a source of light
  • D Because light is a form of energy

Question - 8

Which of the following are non-luminous bodies?
(i) A planet
(ii) A star
(iii) A metal strip
(iv) A burning candle

  • A Only (i) and (ii)
  • B Only (ii) and (iii)
  • C Only (i)and (iii)
  • D Only (ii) and (iv)

Question - 9

Which of the following allows light to pass through it easily?

  • A A metal plate
  • B A glass tumbler
  • C A book
  • D A wooden block

Question - 10

Which of the following reflects light the most?

  • A A mirror
  • B A piece of paper
  • C A cloth
  • D A wooden table