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Light, Shadows and Reflections

this test will cover the chapter of light, shadow and reflection

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

What will you call the area of total darkness?

  1. Shadow
  2. Penumbra
  3. Umbra
  4. Another name of luminous body
  5. Non-luminous object
Question 2 Multiple Choice (Single Answer)

What will you call a body which emits light by itself?

  1. Luminous body
  2. Non-luminous body
  3. Opaque body
  4. Translucent
  5. None of the above
Question 3 Multiple Choice (Single Answer)

The rectilinear propagation of light means _____________.

  1. light travels in a straight line
  2. light travels in a curved path
  3. light travels in a circular path
  4. light travels in a zig-zag path
  5. none of the above
Question 4 Multiple Choice (Single Answer)

Mirror shows the image because ____________.

  1. it reflects the light which hits it
  2. it absorbs the light which hits it
  3. it allows the light to pass through which hits it
  4. it partially allows the light to pass through it
  5. it shows the image because it is transparent
Question 5 Multiple Choice (Single Answer)

Star is best described as a _______.

  1. luminous body
  2. non-luminous body
  3. opaque
  4. transparent object
  5. translucent object
Question 6 Multiple Choice (Single Answer)

A medium, which allows the light partially to pass through it is called a/an ____________.

  1. opaque medium
  2. transparent medium
  3. translucent medium
  4. optically rarer medium
  5. denser medium
Question 7 Multiple Choice (Single Answer)

Which of the following is/are the example(s) of reflection of light?

  1. Seeing an image of yourself in the mirror
  2. Twinkling of stars
  3. Mirage
  4. Critically cut diamond
  5. All of the above
Question 8 Multiple Choice (Single Answer)

By which of the following ways can a non-luminous body be made luminous?

  1. Cooling
  2. Melting
  3. By placing it near the luminous body
  4. Heating
  5. A non-luminous body can never be made luminous
Question 9 Multiple Choice (Single Answer)

What type of surface reflects light well?

  1. Light coloured and smooth
  2. Dull and dark
  3. Dark coloured and smooth
  4. Any surface
  5. Depends upon the type of light
Question 10 Multiple Choice (Single Answer)

Which of the following is/are not true about the image formed by a plane mirror?

  1. The image is of the same size as the object.
  2. The image is laterally inverted.
  3. The image is real.
  4. The image is virtual.
  5. All of the above
Question 11 Multiple Choice (Single Answer)

"A region of partial darkness, which surrounds the area of complete darkness".
Which of the following phenomena best describes the statement given above?

  1. Umbra
  2. Penumbra
  3. Shadow
  4. Ant umbra
  5. None of the above
Question 12 Multiple Choice (Single Answer)

What kind of screen is required to receive a shadow?

  1. Transparent screen
  2. Translucent screen
  3. Opaque screen
  4. No screen is required
  5. Any kind of screen
Question 13 Multiple Choice (Single Answer)

Light travels ___________.

  1. the fastest in vacuum
  2. the fastest in air
  3. the fastest in water
  4. slower than sound
  5. with the same speed in every medium
Question 14 Multiple Choice (Single Answer)

What kind of image is formed by pin hole camera?

  1. Inverted
  2. Erect
  3. Both inverted and erect
  4. Sometimes inverted and sometimes erect
  5. Virtual image
Question 15 Multiple Choice (Single Answer)

When light bounces back off a surface, it is called ____________.

  1. reflection of light
  2. refraction of light
  3. rectilinear propagation of light
  4. total internal reflection
  5. none of the above
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