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Light, Shadows and Reflections

All about light and reflection

14 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following is not translucent?

  1. Smoke
  2. Air
  3. Sheet of cellophane
  4. Fog
  5. Wire mesh
Question 2 Multiple Choice (Single Answer)

Why is the source of light not visible through a bent cylindrical tube?

  1. The distance between the eye and the source of light increases.
  2. The light is absorbed by the tube.
  3. The light travels in a straight line.
  4. It is dark inside the tube.
  5. None of these
Question 3 Multiple Choice (Single Answer)

The movement of two boxes in a pinhole camera shows _____________ movement.

  1. to and fro
  2. up and down
  3. vibration
  4. rotation
  5. none of these
Question 4 Multiple Choice (Single Answer)

Which of the following is the odd one odd?
The Sun, The Moon, A Torch, A Bulb, The flame of a gas burner

  1. The Moon
  2. The Sun
  3. A torch
  4. A bulb
  5. The flame of a gas burner
Question 5 Multiple Choice (Single Answer)

What type of image can one get in a pinhole camera?

  1. Inverted and virtual image
  2. Erect and real image
  3. Inverted and real
  4. Erect and diminished
  5. Virtual and diminished
Question 6 Multiple Choice (Single Answer)

A complete shadow cast by the Earth on the Moon is a(n) ______________.

  1. solar eclipse
  2. lunar eclipse
  3. prenumbral lunar eclipse
  4. new Moon day (amavasya)
  5. none of these
Question 7 Multiple Choice (Single Answer)

Light falling on a mirror gets ____________.

  1. absorbed
  2. partially absorbed and partially reflected
  3. reflected back
  4. partially passed through it and partially reflected
  5. partially passed through it and partially absorbed
Question 8 Multiple Choice (Single Answer)

Paper on which oil is spilled is a ____________ type of object.

  1. transparent
  2. luminous
  3. translucent
  4. opaque
  5. none of these
Question 9 Multiple Choice (Single Answer)

When light falls on an object, a shadow is formed. Which of the following explanations is/are correct?
(a) The object is opaque.
(b) Light cannot pass through it.
(c) The object has a definite colour.

  1. Only a
  2. Only b
  3. Only c
  4. Only a and b
  5. Only b and c
Question 10 Multiple Choice (Single Answer)

Sri is standing in a dark room in front of a mirror. What type of reflection will he see?

  1. Laterally inverted and coloured
  2. Laterally inverted and black and white
  3. Erect and coloured
  4. Laterally inverted, but a faint image
  5. No image
Question 11 Multiple Choice (Single Answer)

We see objects around us during day because of sunlight. What property of the Sun allows us to see?

  1. Opacity
  2. Luminosity
  3. Transparency
  4. Reflection
  5. None of these
Question 12 Multiple Choice (Single Answer)

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

  1. Heating
  2. Cooling
  3. Evaporation
  4. Condensation
  5. All of these
Question 13 Multiple Choice (Single Answer)

Which of the following statements is/are true?

(a) We can see an object clearly behind translucent glass.
(b) We can see an object in the presence of a luminous object.
(c) Light travels in a straight line.
(d) Stars are non-luminous.

  1. Only d
  2. Only a
  3. a and b
  4. b and c
  5. c and d
Question 14 Multiple Choice (Single Answer)

A column has an object not belonging to the category. Which of the following object is wrongly placed?

     
Non-luminous Transparent Opaque
1 Smoke Glass Board
2 Mirror Water Wall
3 Firefly Lenses Rock
4 Pencil Air Book
  1. Firefly
  2. Smoke
  3. Lens
  4. Book
  5. Water
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