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7th CBSE
IMPORTANT
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The distance between the optical centre and the principal focus of a lens is called its  .

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Important Questions on Light

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7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 15 - Light>Exercise>Q C
The band of seven colours formed on a white screen when white light passes through a prism, is called _____ .
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7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 15 - Light>Exercise>Q C
The splitting of light into seven colours is called _____ of light.
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7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 15 - Light>Exercise>Q 1
We are holding_____ .
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7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 15 - Light>Exercise>Q 2
The black paper after a few minutes _____.
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7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 15 - Light>Exercise>Q 3
The lens forms _____ image of the sun.
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7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 15 - Light>Exercise>Q 1
Give on example of a virtual image.
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7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 15 - Light>Exercise>Q 2
Write any three uses of concave mirrors.
EASY
7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 15 - Light>Exercise>Q 3
Define spectrum.