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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
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.
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 luminous object is moved towards the pinhole.
Tick the correct answer.
The image formed in a pinhole camera is
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
______ camera is a simple device that helps us to understand the rectilinear propagation of light.
