What are the factors that affect the size of a shadow?

The color of the object.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

The distance of the source of light from the object.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

The angle at which the light rays fall on the object.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

The size of the opaque object.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct options are
B The distance of the source of light from the object.
C The angle at which the light rays fall on the object.
D The size of the opaque object.
The size of the shadow depends on the distance of the source of light and on the angle at which the light rays fall on the object.

If the source of light is closer to the object, a larger shadow is formed than when the source of light is far from the object.

It can be observed from the above figure that as the angle of light incident on the object changed the length of the shadow changed.

Suggest Corrections

Similar questions

Q. The given figure shows the formation of the shadow of an opaque object when light from a torch strikes the object. If the distance between the torch and the object is increased, the size of the shadow will:

Q. In an experiment, positions of light source and screen are fixed. An opaque object is taken closer to the source then the size of the shadow on the screen ___________.

Q. Which of these will form a darkest shadow?
(a) opaque object
(b) transparent object
(c) translucent object
(d) cannot say because it depends on the source of light

Q. The size and darkness of a shadow depends on the relative position of the light source and the object, as well as the type of the object.

What does these lines mean- the fact that a small source of light casts a sharp shadow of an opaque object points to this straight line path of light, usually indicated as a ray of light.

Join BYJU'S Learning Program