Light And Shadows

Light is a form of energy.

• True

• False

Sun is a _______ source of light.

Is Moon is a luminous object(which emit their own light)?

• Yes

• No

Answer explanation

We can see the light coming from the Moon in the night sky. So, we thought that Moon has its own light but that's not the truth. Moon is a non-luminous object Because It uses to reflect Sun's light.

Which of these are the properties of the image formed by a pin hole camera?

• IT IS ALWAYS INVERTED.

• IT IS OBTAINED ON THE SCREEN.

• IT IS ALWAYS ERECT BUT LATERALLY INVERTED.

• SIZE OF THE IMAGE IS MUCH SMALLER THAN THE SIZE OF THE OBJECT.

What is the colour of Shadow formed by an object?

• The colour of the shadows is same to the colour of the object

• Brown

• Black

• Red

A _____ _____ is a natural phenomenon that occurs on a full Moon day.

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Answer explanation

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An object that allows light to pass to through it completely, is known as-

• transparent object

• opaque object

• translucent object

When light reflected from a plane mirror, it changes its ________ of propagation.

Which of these are artificial source of light?

• Candles

• Firefly

• bulbs

• Sun