MEDIUM
7th CBSE
IMPORTANT
Earn 100

Anant stands 70 cm away from a plane mirror. His sister, Anushka, stands 50 cm behind Anant. How far away from Anant is Anushka's image? 

12.5% studentsanswered this correctly

Important Questions on Light

EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 4 - Light>EVALUATE>Q 4
If a regular reflection is to be produced, the object must be made of _____.
EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 4 - Light>EVALUATE>Q 5
Light travels fastest in/on
MEDIUM
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 4 - Light>EVALUATE>Q 1
'Funny mirrors' make you look short, long, thin, fat or distorted. What causes the images of these funny mirrors to be distorted? 
MEDIUM
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 4 - Light>EVALUATE>Q 2

Observe the given ray diagram. Is the given diagram correct? Give a reason.

Question Image

MEDIUM
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 4 - Light>EVALUATE>Q 3
White sunlight is not dispersed in air. Why?
MEDIUM
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 4 - Light>EVALUATE>Q 4
In an experiment, different coloured light was shown on to some aquatic plants separately and the rate of production of oxygen was measured. Which coloured light will produce the lowest rate of production of oxygen? Explain your answer.
MEDIUM
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 4 - Light>EVALUATE>Q 5

What is the colour of a white object when the following coloured lights shine on it?

 Red

MEDIUM
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 4 - Light>EVALUATE>Q 5

What is the colour of a white object when the following coloured lights shine on it?

Blue