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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
Write true or false of the following statement.
Image formed in a pinhole camera is real.
Write true or false of the following statement.
The image in a pinhole camera gets blurred if the hole is made bigger.
Select the correct alternative.
The formation of inverted image in a pinhole camera shows that
What is a pinhole camera? Draw a neat and labelled diagram to show the formation of an image of a lighted candle by it.
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).
Fill in the blank
Pinhole camera is based on the ................... propagation of light.
The image obtained in the pinhole camera is ______.
Compare the images formed by plane mirror with that by pinhole camera
How does light travel?
