Match the two columns. Column A Column B 1. Mirror a. Shadow 2. Opaque objects b. Luminous 3. Butter paper c. Non-luminous 4. Firefly d. Reflection 5. Moon e. Diminished image 6. Pinhole camera f. Translucent

1. Mirror - d. Reflection A highly polished reflecting surface that can return the rays of light falling on it into the same medium is called a mirror. The simplest type of mirror is a plane mirror. It always forms virtual images. 2. Opaque objects - b. Shadow A shadow is a region without light that forms behind the opaque object. The opaque object blocks the light, therefore, the shadow is dark. A transparent object does not form a shadow. 3. Butter paper - c. Translucent Butter paper is a translucent object. Translucent objects partially absorb, reflect or scatter the light and allow some light to pass through them. We can see only dim light through these objects. 4. Firefly - d. Luminous The object which emits its own light is known as a luminous object. Hence, firefly is a luminous object. 5. Moon - e. Non-luminous The object which doesn't have its own light is non-luminous. Moon is a luminous object which is visible because it reflects the light from the sun. 6. Pinhole camera - f. Diminished image A pinhole camera works on the basis of rectilinear propagation of light. In pinhole camera, the image formed is of smaller size. Hence, it is said to be diminished. Column A Column B 1. Mirror a. Reflection 2. Opaque objects b. Shadow 3. Butter paper c. Translucent 4. Firefly d. Luminous 5. Moon e. Non-luminous 6. Pinhole camera f. Diminished image

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Start Up Science 6>Chapter 15 - Light>EXERCISES>Q C

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The moon is a natural source of light.

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Important Questions on Light

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Start Up Science 6>Chapter 15 - Light>EXERCISES>Q C

_____ objects form dark shadow.

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Start Up Science 6>Chapter 15 - Light>EXERCISES>Q C

Shadow is formed in the _____ direction to the direction of source of light.

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Start Up Science 6>Chapter 15 - Light>EXERCISES>Q C

Trees covered with a large number of leaves are natural _____.

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Start Up Science 6>Chapter 15 - Light>EXERCISES>Q C

_____ (Light/ Object) gives rise to image formation.

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Start Up Science 6>Chapter 15 - Light>EXERCISES>Q C

Match the two columns.

Column A	Column B
1. Mirror	a. Shadow
2. Opaque objects	b. Luminous
3. Butter paper	c. Non-luminous
4. Firefly	d. Reflection
5. Moon	e. Diminished image
6. Pinhole camera	f. Translucent