Propagation of light 1 leson 4 term 8th grade

Propagation of light 1 leson 4 term 8th grade

Multiple Choice

Moon produces its own light

• True

• False

Multiple Choice

Tick the list of natural source of light.

• candle, fireflies, sun

• sun, moon, star, jellyfish

• lightbulb, sun, candle, torch

Multiple Choice

Which of the following is an examples of man made source of light?

Multiple Choice

Which of these is a source of light?

Multiple Choice

Which of the following is a source of light

• Eye

• Mirror

• Fire

• the moon

Multiple Choice

Observe the diagram given below. What is proved from the above arrangement?

• Light can be refracted.

• Light can be reflected.

• Light can be blocked.

• Light travels faster than sound.

Multiple Choice

You cannot see the flame of a burning candle by looking through a bent pipe. This is because

• light gets bent along the pipe.

• light travels in a straight line.

• light gets reflected.

• light gets absorbed.

Multiple Choice

In the morning, when the sun rises in the east, your shadow will be seen on the

• east.

• north

• west

• south

Multiple Choice

Which of the following objects does not emit light of its own?

• The sun

• The star

• The moon

• A firefly

Multiple Choice

What is true about shadows and images?

• Shadows are always black in colour.

• Shadows are formed because light travels in straight line

• Images shows the colour of the objects

• All the above

Multiple Choice

Which types of objects do not allow light to pass through them?

• Translucent

• Opaque

• Transparent

Multiple Choice

Light travels in a

• Straight line

• Curved line

• Slanting line

• Light doesn't travel

Multiple Choice

Moon is a ---------- object.

• Luminous

• Non-luminous

• Transparent

• None of these

Multiple Choice

------------- objects form a shadow.

• Transparent

• Translucent

• Opaque

• Luminous

Multiple Choice

It is always black, regardless of the colour of the object. What is it?

• Source

• Image

• Shadow

• Screen

Multiple Choice

Light can travel in a zig-zag way.

• True

• False

Multiple Choice

Which of the following is not neccesary to create a shadow

• Sun

• Opaque object

• Screen

• Source of light