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प्रश्न
Answer the following.
Write down five man-made sources of light.
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उत्तर
Electric bulb, torch, an oil lamp, fluorescent tube, candle.
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संबंधित प्रश्न
List two artificial sources of light.
What is a transparent medium? Give two examples.
Name any four man made sources of light.
Tick the correct answer.
Light causes
Tick the correct answer.
Light is a font of
Light is a form of ______.
Write about two everyday situations that tell you that light travels in a straight line.
Describe the pictures.
a) Draw ray diagrams to show how the image is formed using a concave mirror, when the position of object is:
- at C
- between C and F
- between F and P of the mirror.
b) Mention the position and nature of image in each case.
Boojho made light from a laser torch fall on a prism. Will he be able to observe a band of seven colours? Explain with a reason.
