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# By corpuscular theory of light, the phenomenon which can be explained is ____________.(A) Refraction(B) Diffraction(C) Interference(D) Polarisation

Last updated date: 12th Sep 2024
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Hint The Corpuscular theory of light was first proposed by René Descartes in the year of \$1637\$. One of the pioneers of the theory Sir Isaac Newton then remarkably elaborated the theory in the year \$1672\$. Then the theory of light then re-emerged as the light phenomenon in the late \${20^{th}}\$ century.

Complete step by step solution
The theory of light is defined that the light that passes through a straight line with a finite velocity is made up of finely detached small particles known as the Corpuscles. The light theory for the reflection of light, the light particles that collide with the reflecting surface, the light particles that get reflected in such a way that the angle of ray of incidence and the angle of ray of reflection are equal.

This is due to the repulsion of the reflecting surface and the light particles.In case of the refraction of the light in the theory of the light, the light particles that reach the surface of refraction the particles of light or the corpuscles get attracted towards the refracting surface. The light particle enters from the rarer medium to the denser medium there is an increase in the speed of light and therefore its direction also changes.

Therefore, by corpuscular theory of light, the phenomenon which can be explained is refraction.

Hence, option (A) refraction is the correct answer

Note: The sudden change in the direction of the light wave which when passes through from one medium to the other medium is called the refraction of light. This phenomenon can be distinguished in the sound waves and water waves. The refraction of light does not have any S.I. unit.