Tag: reflection of light and shadow

Quizzes (17) Questions (85)

Questions Related to reflection of light and shadow

Multiple choice physics reflection of light and shadow beam of light ray and beam ray optics

State whether true or false.
When the rays of light starting from a point source travel in various directions, then the collection of such rays is called a convergent beam of light.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When the rays of light starting from a point travel in various directions then collection of such rays is called divergent beam of light

Multiple choice physics reflection of light and shadow beam of light ray and beam ray optics

A beam of light is made up of:

  1. Rays

  2. Droplets

  3. Clusters

  4. Groups
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
A $ \bf{beam\ of\ light}$ is group of rays of light travelling in a particular direction. 
A $ \bf{ray\ of\ light} $ is the direction along which the light energy propagates.

Hence, the correct answer is OPTION A.
Multiple choice physics reflection of light and shadow beam of light ray and beam ray optics

State whether true or false:
In convergent beam of light all the light rays meet at a point.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

If a parallel beam of light fall on a converging mirror or lens then they will also pass through focus i.e. all the rays will meet at a point of a convergent beam.

Multiple choice physics reflection of light and shadow beam of light ray and beam ray optics

Which of the following is true about observation of light?

  1. When we switch on the torch we can observe the beam of light

  2. Sun light can be observed in early morning when sun rises

  3. We can observed beam of light of sun through a hole

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All the three statements are true that light is observed when switching on the torch, sunlight is observed in early morning and a beam of light can be observed through a hole.

Multiple choice physics reflection of light and shadow beam of light ray and beam ray optics

Physical processes are sometimes described visually by lines. Only the following can cross.

  1. Streamlines in fluid flow

  2. Lines of forces in electrostatics

  3. Rays in geometrical options

  4. Lines of force in magnesium
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Since in case of reflection or reflection of light rays, the image formation is the meeting/crossing of light ray's through a point.

Multiple choice physics reflection of light and shadow beam of light ray and beam ray optics

A glass slab is placed in the path of convergent light.. The point of convergence of light .......... .

  1. moves away from the slab

  2. moves towards the slab

  3. remains at the some point

  4. undergoes a lateral shift
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When a convergent beam of light passes through a glass slab, the light rays are refracted towards the normal upon entering and away from the normal upon exiting. This causes the point of convergence to shift further away from the slab.