Question

Explain briefly the Planck's Quantum theory.

Answer 1

It states that Energy is directly proportional to the frequency... E=hv

Answer 2

Answer:

Planck's Quantum theory:

• When we heat a black body, it emits thermal radiations of different wavelength and frequency. Max Planck gave a theory which explained the radiation of the black body. This theory is known as Planck's Quantum theory.
• Every substance absorbs or radiate energy in the form of small bundles of energy also called small packets of energy.
• Quantum is the smallest packet of energy. When we talk in terms of light, then the term photon is used instead of quantum.

• Quantum energy is directly proportional to the frequency of radiation.

• E = hν

where E is the energy

h is the Planck's constant

v is the radiation frequency

• Radiation or absorption by the body is always in whole-number multiples of hν, 2hν, ....... nhν

where the positive integer is denoted by n.