EASY
Lower Secondary Stage 8
IMPORTANT
Earn 100

At what time of day is your shadow the longest?

Important Questions on Light

EASY
Lower Secondary Stage 8
IMPORTANT
Some people think that light always reflects through an angle of 90°. Is that correct? Draw a diagram to explain your answer.
EASY
Lower Secondary Stage 8
IMPORTANT
If you stand 50 cm in front of a plane mirror, how far behind the mirror will your image seem to be? How do you know?
EASY
Lower Secondary Stage 8
IMPORTANT
What does the letter F looks like in a mirror?
EASY
Lower Secondary Stage 8
IMPORTANT
You look at a coin in a glass beaker. Its real depth is 10 cm. Is its apparent depth more than 10 cm or less than 10 cm?
EASY
Lower Secondary Stage 8
IMPORTANT
Light refracts more when it travels between glass and air than when it travels between water and air. You look at a coin 20 cm under water. Its apparent depth is about 15 cm. The same coin is under a glass block 20 cm thick. Is its apparent depth more than 15 cm15 cm or less than 15 cm?
EASY
Lower Secondary Stage 8
IMPORTANT
What would you see if you look at a cyan shirt using a green filter?
EASY
Lower Secondary Stage 8
IMPORTANT
What will you see if you look at a magenta shirt under red light?
EASY
Lower Secondary Stage 8
IMPORTANT
What will you see if you look at a red shirt under yellow light?