State the drawbacks of Newton’s corpuscular theory of light.

1.	State the drawbacks of Newton’s corpuscular theory of light.
Answer» Drawbacks of Newton’s corpuscular theory of light: 1. The theory predicted that the speed of light in a denser medium should be greater than that in air. This was disproved when experiment showed that the speed of light in water is less than that in air (carried out in 1850 by French physicist Jean Bernard Leon Foucault). , 2. The theory could not satisfactorily explain the phenomenon of polarization and the simultaneousness of reflection and refraction. 3. The corpuscular theory failed to explain the phenomena of diffraction and interference. 4. There was no basis for the hypothesis that the constituent colours of white light are due to different sized corpuscles.

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Drawbacks of Newton’s corpuscular theory of light:

1. The theory predicted that the speed of light in a denser medium should be greater than that in air. This was disproved when experiment showed that the speed of light in water is less than that in air (carried out in 1850 by French physicist Jean Bernard Leon Foucault). ,

2. The theory could not satisfactorily explain the phenomenon of polarization and the simultaneousness of reflection and refraction.

3. The corpuscular theory failed to explain the phenomena of diffraction and interference.

4. There was no basis for the hypothesis that the constituent colours of white light are due to different sized corpuscles.

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