Light Reflection And Refraction Quiz!

24 Questions | By Shreevatsa00 | Last updated: Mar 21, 2022 | Total Attempts: 806

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$Light Reflection And Refraction Quiz! - Quiz$

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1.

If an incident ray passes through the focus of the concave mirror the reflected ray will?
- A.
  
  Pass through the pole
- B.
  
  Parallel to the principal axis
- C.
  
  Retrace its path
- D.
  
  Passes through the centre of curvature
2.

The refractive index of ice, salt & glass is 1.31 1.54, and 1.52 respectively which light travels faster and slower.
- A.
  
  Ice and class
- B.
  
  Glass and ice
- C.
  
  Ice and salt
- D.
  
  Salt and ice
3.

Power of a lens is reciprocal of?
- A.
  
  Principal axis
- B.
  
  Principal focus
- C.
  
  Focal length
- D.
  
  Radius of curvature
4.

When the object is placed between f and 2f of a convex lens the image formed is?
- A.
  
  At f
- B.
  
  At 2f
- C.
  
  Beyond 2f on the other side
- D.
  
  Between F & 2F on the same side
5.

A Ray of light traveling from a rarer medium to a denser medium.
- A.
  
  Bend away from the normal
- B.
  
  Bend towards normal
- C.
  
  Go straight
- D.
  
  It does not bend
6.

A student does the experiment on tracing the path of a ray of light passing through a rectangular glass slab for different angles of incidence. He can get a correct measure of the angle of incidence and the angle of emergence by following the labeling indicated in figure:
- A.
  
  IV
- B.
  
  I
- C.
  
  II
- D.
  
  III
7.

The image formed by the plane mirror is:
- A.
  
  Real and erected
- B.
  
  Real and inverted
- C.
  
  Virtual and erected
- D.
  
  Virtual and inverted
8.

A concave mirror gives the real inverted and same size of the image and object is placed.
- A.
  
  At f
- B.
  
  At infinity
- C.
  
  At C
- D.
  
  Beyond c
9.

The radius of curvature 200 CM it's focal length is:
- A.
  
  ,0.5 metre
- B.
  
  1 metre
- C.
  
  100 m
- D.
  
  25m
10.

The diverging lenses:
- A.
  
  Concave lens
- B.
  
  Convex mirror
- C.
  
  Convex lens
- D.
  
  Concave mirror
11.

The focal length of a lens or a mirror or lens is always half of the length of the radius of curvature.
- A.
  
  True
- B.
  
  False
12.

Which of them is not paired correctly 1. Solar furnace -concave mirror 2.RearRear view mirror -convex mirror 3. Magnifying glass -convex lens 4. Shaving mirror - convex mirror
- A.
  
  3
- B.
  
  2
- C.
  
  4
- D.
  
  3
13.

Bending of light is called?
- A.
  
  Polarization
- B.
  
  Reflection
- C.
  
  Dispersion
- D.
  
  Refraction
- E.
  
  None of the above
14.

The angle of incidence for a Ray of light having 0 reflection angle is:
- A.
  
  0°
- B.
  
  45°
- C.
  
  90°
- D.
  
  180°
15.

The speed of the light in water is 2.5X10 power 8 metres per second if the speed of the lit in a vacuum is 3 X 10 power 8 metres per second. Calculate the refractive index of it travels From water to vacuum.
16.

The laws of reflection hold good for?
- A.
  
  Plane mirrors only
- B.
  
  Concave mirrors only
- C.
  
  Convex mirrors only
- D.
  
  All the mirror irrespective of their shape
17.

Light travels fastest in?
- A.
  
  Glass
- B.
  
  Air
- C.
  
  Vacuum
- D.
  
  Water
18.

The image formed by a compound microscope is?
- A.
  
  Real and enlarged
- B.
  
  Real and diminished
- C.
  
  Virtual and enlarged
- D.
  
  Virtual and diminished
19.

Which of them converge parallel light rays incident upon them?
- A.
  
  Concave mirror
- B.
  
  Plane mirror
- C.
  
  Convex mirror
- D.
  
  Both concave and convex
20.

The image formed by the actual reflection of light is?
- A.
  
  Virtual and erected image
- B.
  
  Real and erected image
- C.
  
  Virtual and Enlarged image
- D.
  
  Real and inverted image
21.

What will be the power of the lens if the focal length is reduced to 1 by 4?
- A.
  
  Power of lens doubles
- B.
  
  Power of lens reduced to half of it
- C.
  
  Power of lens increases by four times
- D.
  
  Power of lens decreases by 4 times
22.

The center of the reflecting surface of a spherical mirror is called?
- A.
  
  Pole
- B.
  
  Principal axis
- C.
  
  Principal focus
- D.
  
  Centre of curvature
23.

Whenever a Ray of light passes from denser to rarer:
- A.
  
  I=r
- B.
  
  I<r
- C.
  
  I>r
- D.
  
  R=i
24.

The following is not the property of the image formed on the plane mirror.
- A.
  
  Images virtual
- B.
  
  Images laterally inverted
- C.
  
  Image is same size of object
- D.
  
  Images real and same size