EASY
7th CBSE
IMPORTANT
Earn 100

What is a Newton's disc? What is it used to demonstrate? Explain how.

Important Questions on Light

EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 15 - Light>Exercises>LET'S RECALL

Recall and complete the concept map given below.
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EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 15 - Light>Exercises>Q 1
Look at the picture below and name the optical component used in this case.
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EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 15 - Light>Exercises>Q 1
Look at the pictures below and name the optical component used in this case.
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EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 15 - Light>Exercises>Q 1
Look at the picture below and name the optical component used in this case.
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EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 15 - Light>Exercises>Q 1
Look at the picture below and name the optical component used in this case.
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EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 15 - Light>Exercises>Q 1
Look at yourself in two plane mirrors, one big and one small. Will you appear bigger in the bigger mirror?
EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 15 - Light>Exercises>Q 2
Will a Newton's disc appear white even if it is rotated very slowly?
EASY
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 15 - Light>Exercises>Q 1
Yash says that the wing mirrors of the car are convex and not concave. Is he right? Give one reason in support of your answer.