Let Us Enhance Our Learning (Pages 165-167)Which of the following are luminous objects? Class 7
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Let Us Enhance Our Learning (Pages 165-167) Class 7
Let Us Enhance Our Learning (Pages 165-167) Class 7
Question 1.
Which of the following are luminous objects?
Mars, Moon, Pole Star, Sun, Venus, Mirror
Answer:
Luminous objects: Sun and Pole star are the luminous objects, because they emit their own light.
Question 2.
Match the items in Column A with those in Column B.
| Pinhole camera | Forms an inverted image |
| Opaque object | |
| Transparent object | |
| Shadow |
Answer:
| Pinhole camera | Forms an inverted image |
| Opaque object | Blocks light completely |
| Transparent object | Light passes almost completely through it |
| Shadow | The dark region formed behind the object |