EASY
7th CBSE
IMPORTANT
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Concave lenses are used to make reading glasses.

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Important Questions on Light

EASY
7th CBSE
IMPORTANT
Science Horizons>Chapter 15 - Light>Exercises>Q D
Write down the characteristics of images formed by the plane mirror.
EASY
7th CBSE
IMPORTANT
Science Horizons>Chapter 15 - Light>Exercises>Q D
Differentiate between real and virtual images.
EASY
7th CBSE
IMPORTANT
Science Horizons>Chapter 15 - Light>Exercises>Q D
Write down three uses of curved mirrors.
EASY
7th CBSE
IMPORTANT
Science Horizons>Chapter 15 - Light>Exercises>Q D
Why are concave mirrors used as dentist's mirrors?
EASY
7th CBSE
IMPORTANT
Science Horizons>Chapter 15 - Light>Exercises>Q D
Would you use a convex or a concave lens if you want to focus the sun's rays to a point?
EASY
7th CBSE
IMPORTANT
Science Horizons>Chapter 15 - Light>Exercises>Q D
How can we make a band of colours from white light? What is this band of colours called?
EASY
7th CBSE
IMPORTANT
Science Horizons>Chapter 15 - Light>Exercises>Q D
Explain an activity to show how can we make a coloured disc white.
MEDIUM
7th CBSE
IMPORTANT
Science Horizons>Chapter 15 - Light>Think and Answer>Q 1
Look at yourself in two plane mirrors, one big and one small. Will you appear bigger in the bigger mirror? (Hint: Think of the image characteristics of a plane mirror)