The region of partial darkness in a shadow is called________
penumbra
A bunch or collection of rays is called __________ of light.
Beam
What are the conditions required for a shadow to be formed?
Source of light, an object and a screen
The size of the shadow decreases as we decrease the distance between the source of light and the object. True/False
False
Why doesn't solar eclipse occur every year?
As moon's orbit is elliptical.
What is the central and darkest part of the shadow?
Umbra
A collection of rays of light from different directions that meet at a point is called _______ beam of light.
Convergent
The darkest shadow is formed by ___________ object.
opaque
Which beam of light is this?
divergent
A Shadow does not show any _________ of the object.
details
Shadows are always formed on the _______side of the source of light.
opposite