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प्रश्न
Tick the correct answer.
Light causes
पर्याय
Sensation of heat
Sensation of vision
Sensation of sound
None of these
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उत्तर
Sensation of vision
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संबंधित प्रश्न
What do we call an electric bulb producing light?
Tick the correct answer.
Light is a font of
Fill in the blank
The brightness of light is measured in ...................
Write true or false
The stars have no light.
Write whether of the following objects are luminous or non-luminous.
| Object | Luminous/Non-luminous |
| A book | |
| A burning candle | |
| A wax cloth | |
| A pencil | |
| A pen | |
| A light bulb | |
| A tyre | |
| A torch |
Match the following.
| Group A | Group B |
| (a) Mirror | (1) Non-luminous |
| (b) Firefly | (2) Inverted image |
| (c) Pinhole camera | (3) Reflection |
| (d) Moon | (4) Luminous |
The mirror used in search light is ______.
Boojho and Paheli were given one mirror each by their teacher. Boojho found his image to be erect and of the same size whereas Paheli found her image erect and smaller in size. This means that the mirrors of Boojho and Paheli are, respectively
Light is a form of energy and it travels in a straight line.
Observe the picture given in the following figure carefully.
A patch of light is obtained at B, when the torch is lighted as shown. Which of the following is kept at position A to get this patch of light?
