Question

write a short note on Planck's Quantum theory

Answer 1

HEY,,,,

PLANCK'S QUANTUM THEORY:

Until the late 19th century, Newtonian physics dominated the scientific worldview. However, by the early 20th century, physicists discovered that the laws of classical mechanics do not apply at the atomic scale.

The photoelectric effect could not be rationalized based on existing theories of light, as an increase in the intensity of light did not lead to the same outcome as an increase in the energy of the light.

Planck postulated that the energy of light is proportional to the frequency, and the constant that relates them is known as Planck’s constant (h). His work led to Albert Einstein determining that light exists in discrete quanta of energy, or photons.

HOPES IT IS '' OK ''

Answer 2

Max Planck study the energy emmited from hot bodies at different temperature.He found that molecule of a hot body emit light radiation.This continuously in the from of a small energy bundles.This led into purpose a new theory known as Plank Quantum Theory of radiation.
__The silent feature of this theory are as follows___
i)Radiate energy is emmited or absorbed continuously in the form of small bundle of energy or energy packets as Quanta or photon.
ok) Each quantum of radiation associated with a finite amount of energy depending upon frequency of radiation.
E is directly proportional to v
E=HV
iii)A body emit or absorbed energy only in an integral multiple of Quantum that is radiation energy can be emmited as HV,2hv,3hv....
hope this Will helpful...
plss mark as brainlist