Match the following: 1. Real and inverted image a. Reflection 2. Diverging lens b. Concave mirror 3. Used in headlights of vehicles c. Rainbow 4. Metal used for coating mirrors d. Concave lens 5. The bouncing of light from a surface e. Mercury 6. Dispersion of white light f. Retina

1. Real and inverted image f. Retina Retina is the part of an eye, connected to the brain by the optic nerve that acts as a screen which forms real and inverted image. 2. Diverging lens d. Concave lens Concave lens is a diverging lens, bounded by two transparent curved surfaces, which is thin at the middle and thick at the edges. 3. Used in headlights of vehicles b. Concave mirror A concave mirror is a curved mirror whose outer side is polished. These mirrors are used in headlights of vehicles. The concave mirror is the only mirror to form virtual and magnified image. 4. Metal used for coating mirrors e. Mercury Mercury is used for coating mirrors because it has a shiny surface and is a good reflector of light. 5. The bouncing of light from a surface a. Reflection When light falls on an object, it changes its direction and bounces back. This bouncing back of light from the shiny surface is known as the reflection of light. Images are formed by the mirrors due to the reflection of light. 6. Dispersion of light c. Rainbow The rainbow consists of seven colours and is formed by the dispersion of white light of the sun through transparent water droplets present in the air. Hence, the correct match for the following are: 1. Real and inverted image f. Retina 2. Diverging lens d. Concave lens 3. Used in headlights of vehicles b. Concave mirror 4. Metal used for coating mirrors e. Mercury 5. The bouncing of light from a surface a. Reflection 6. Dispersion of white light c. Rainbow

E M B I B E

Expanded Universal Science 7>Chapter 15 - Light and Associated Phenomena>ASSESSMENT ZONE>Q D

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7th CBSE

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Give one word for material through which light can pass partially.

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Important Questions on Light and Associated Phenomena

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Expanded Universal Science 7>Chapter 15 - Light and Associated Phenomena>ASSESSMENT ZONE>Q D

Another name of converging lens.

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Expanded Universal Science 7>Chapter 15 - Light and Associated Phenomena>ASSESSMENT ZONE>Q D

A point at which converging rays of light meet.

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Expanded Universal Science 7>Chapter 15 - Light and Associated Phenomena>ASSESSMENT ZONE>Q D

A curved mirror whose inner side is polished.

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Expanded Universal Science 7>Chapter 15 - Light and Associated Phenomena>ASSESSMENT ZONE>Q E

Match the following:

1. Real and inverted image	a. Reflection
2. Diverging lens	b. Concave mirror
3. Used in headlights of vehicles	c. Rainbow
4. Metal used for coating mirrors	d. Concave lens
5. The bouncing of light from a surface	e. Mercury
6. Dispersion of white light	f. Retina