Name a lens which always forms virtual and diminished image.

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Important Questions on Light

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7th CBSE

IMPORTANT

Learning Elementary Science for Class 7>Chapter 15 - Light>Oral Questions>Q 5

Sun rays on passing through moist air, after the rains, form a rainbow. What is the name of the phenomenon responsible for it? (Choose from: Dispersion/ Scattering/ Reflection)

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7th CBSE

IMPORTANT

Learning Elementary Science for Class 7>Chapter 15 - Light>EXERCISES>Q I

The property of light travelling in a straight line is called _____.

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7th CBSE

IMPORTANT

Learning Elementary Science for Class 7>Chapter 15 - Light>EXERCISES>Q I

The ray of light may be returned by the second optical medium into the first optical medium with a change in angle. This phenomenon is known as:

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7th CBSE

IMPORTANT

Learning Elementary Science for Class 7>Chapter 15 - Light>EXERCISES>Q I

When the rays of light starting from a well illuminated object are reflected from a smooth polished surface in such a way that they meet at some other point or on a screen, then the image so formed is known as:

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7th CBSE

IMPORTANT

Learning Elementary Science for Class 7>Chapter 15 - Light>EXERCISES>Q I

When the rays starting from a well illuminated object are reflected from a smooth polished surface in such a way that they appear to meet at some other point, but cannot meet on a screen, then the image so formed is called _____.

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7th CBSE

IMPORTANT

Learning Elementary Science for Class 7>Chapter 15 - Light>EXERCISES>Q I

A convex mirror:

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7th CBSE

IMPORTANT

Learning Elementary Science for Class 7>Chapter 15 - Light>EXERCISES>Q I

Concave mirrors are used:

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7th CBSE