Light, Shadows and Reflections 1

We need (a)   to see everything around us .

Which of the following does not have light of its own?

• a torch

• a lamp

• the moon

• the sun

When the Sun is behind you, your shadow is ...

• behind you

• in front of you

• at the side of you

• not there

When an object moves closer to a light source, its shadow...

• Gets smaller

• Gets bigger

• Changes shape

• Stays the same size

Shadows are longest during _______.

• morning and evening

• noon

• night

Which is NOT a source of light?

• firefly
• ball
• sun
• falshlight

Q1. Diagram shows a phenomenon occurs when the spotlight is directed onto a mirror surface. What is the principle of light shown in the situation?

• Light travels in a straight line

• Reflection of light

• Refraction of light

• Light travels in parallel

Anushka put some tea into four cups made up of paper, glass, metal & porcelain. Which cups will allow her to see the level of tea clearly

• paper cup

• metal cup

• glass

• porcelain cup

A device containing two plane mirror which gives us a higher view than a normal is

• Stethoscope

• microscope

• periscope

• telescope

How are the two mirrors in a periscope arranged with respect to :

a) each other

b) ends of the tube

• a) parallel to each other

  b) 45 degrees with respect to ends

• a) 90 degrees to each other

  b) 45 degrees with respect to ends.