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प्रश्न
How can you obtain a point source of light?
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उत्तर
A point source of light is obtained either by placing a screen having a fine hole, in front of die luminous body, or by placing the luminous body inside a box having a fine hole on one of its sides.
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संबंधित प्रश्न
Select the correct alternative.
The formation of inverted image in a pinhole camera shows that
Define the terms: a ray of light and a beam of light.
Explain the formation of the image of a luminous object in a pinhole camera with the aid of a neat diagram.
How is the image affected in a pinhole camera when another fine hole is made near the first pinhole?
State the effect on the image in a pinhole camera if the hole is made bigger.
State the effect on the image in a pinhole camera if The length of the pinhole camera is increased (length the screen is moved away from the pinhole).
Write true or false
Image formed in a pinhole camera is erect.
The image obtained in the pinhole camera is ______.
Compare the images formed by plane mirror with that by pinhole camera
How does light travel?
