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प्रश्न
Define the terms: a ray of light and a beam of light.
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उत्तर
The light traveling in any one direction in a straight line is called a ray of light.
A group of light rays given out from a source is called a beam of light
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संबंधित प्रश्न
Write true or false of the following statement.
Image formed in a pinhole camera is real.
Fill in the blank.
In a pinhole camera, the image formed is ...............
Select the correct alternative.
The formation of inverted image in a pinhole camera shows that
Explain the formation of the image of a luminous object in a pinhole camera with the aid of a neat diagram.
State two factors that affect the size of the image formed in a pinhole camera.
Is the image obtained in a pinhole camera erect or inverted? Give reason for your answer.
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).
The image obtained in the pinhole camera is ______.
______ camera is a simple device that helps us to understand the rectilinear propagation of light.
