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प्रश्न
Which approximation is the basis of geometrical optics?
विकल्प
Light propagates in the form of waves
The wavelength of light tends to zero
Light consists of very small particles called corpuscles
Light is an electromagnetic wave
MCQ
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उत्तर
Geometrical optics is based on the approximation that the wavelength of light tends to zero. Under this approximation, light is treated as rays.
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