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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
Fill in the blank.
In a pinhole camera, the image formed is ...............
What is a pinhole camera? Draw a neat and labelled diagram to show the formation of an image of a lighted candle by it.
Explain the formation of the image of a luminous object in a pinhole camera with the aid of a neat diagram.
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.
Fill in the blank
Pinhole camera is based on the ................... propagation of light.
Write true or false
Image formed in a pinhole camera is erect.
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.
How does light travel?
