Column I Column II 1. Convex lens (a) Rainbow 2. Concave lens (b) Virtual image 3. Prism (c) Regular reflection 4. Plane mirror (d) Converging rays 5. Shiny surface (e) Diverging rays

Convex lens Converging rays Convex lens is also known as converging lens because rays passing through this lens are converged to a point and the image obtained is magnified. Concave lens Diverging rays Concave lenses are also known as diverging lenses because rays passing through this lens are diverged and the object appears diminished. Prism Rainbow A ray of white light as it passes through a prism splits into seven colours of a rainbow, i.e. VIBGYOR. Plane mirror Virtual image The image produced by a plane mirror is known as a virtual image. Virtual images are always erect. Shiny surface Regular reflection Regular reflection is such a reflection that the angle of reflection of the light is equal to the angle of incidence and on the opposite side of the normal to the point of incidence. It is produced by every shiny surface. Hence the correct matching is: Column I Column II 1. Convex lens (d) Converging rays 2. Concave lens (e) Diverging rays 3. Prism (a) Rainbow 4. Plane mirror (c) Virtual image 5. Shiny surface (b) Regular reflection

E M B I B E

Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Q 7

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When parallel rays pass through a concave lens, they _____.

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Important Questions on Light

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Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Q 8

The image that cannot be captured on a screen is a

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Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Q 1

In a concave mirror, reflection takes place at the inner surface.

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Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Q 2

A plane mirror always forms a real image.

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Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Q 3

A virtual image cannot be obtained on a screen.

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Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Q 4

We use a concave lens as a magnifying glass.

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Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Q 5

White light is composed of three colours.

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Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Match the following

Column I	Column II
1. Convex lens	(a) Rainbow
2. Concave lens	(b) Virtual image
3. Prism	(c) Regular reflection
4. Plane mirror	(d) Converging rays
5. Shiny surface	(e) Diverging rays