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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.
The image in a pinhole camera gets blurred if the hole is made bigger.
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
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.
Tick the correct answer.
The image formed in a pinhole camera is
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
______ camera is a simple device that helps us to understand the rectilinear propagation of light.
