How the corpuscular theory , Huyghen's wave theory and plank's quantum theory of light is different from each other??
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Huygen’s wave theory of light In 1679, Christian Huygens proposed the wave theory of light.
According to huygen’s wave theory:
1. Each point in a source of light sends out waves in all directions in hypothetical medium called "ETHER".
2. Light is a form of energy
3. Light travels in the form of waves.
4. A medium is necessary for the propagation of waves & the whole space is filled with an imaginary medium called Ether
5. Light waves have very short wave length
Newton’s corpuscular theory of light Newton’s corpuscular theory of light is based on the following points
1. Light consists of very tiny particles known as “corpuscular”.
2. These corpuscles on emission from the source of light travel in straight line with high velocity
3. When these particles enter the eyes, they produce image of the object or sensation of vision.
4. Corpuscles of different colours have different sizes.
Quantum theory of light Quantum theory was put forward by MAX-PLANCK in 1905.
According to quantum theory
“Energy radiated or absorbed can not have any fractional value. This energy must be an integral multiple of a fixed quantity of energy. This quantity is called “QUANTUM”
OR
Energy released or absorbed is always in the form of packets of energy or bundles of energy. These packets of energy are known as QUANTA or PHOTONS
According to huygen’s wave theory:
1. Each point in a source of light sends out waves in all directions in hypothetical medium called "ETHER".
2. Light is a form of energy
3. Light travels in the form of waves.
4. A medium is necessary for the propagation of waves & the whole space is filled with an imaginary medium called Ether
5. Light waves have very short wave length
Newton’s corpuscular theory of light Newton’s corpuscular theory of light is based on the following points
1. Light consists of very tiny particles known as “corpuscular”.
2. These corpuscles on emission from the source of light travel in straight line with high velocity
3. When these particles enter the eyes, they produce image of the object or sensation of vision.
4. Corpuscles of different colours have different sizes.
Quantum theory of light Quantum theory was put forward by MAX-PLANCK in 1905.
According to quantum theory
“Energy radiated or absorbed can not have any fractional value. This energy must be an integral multiple of a fixed quantity of energy. This quantity is called “QUANTUM”
OR
Energy released or absorbed is always in the form of packets of energy or bundles of energy. These packets of energy are known as QUANTA or PHOTONS
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