Who found an empirical relationship between the half-life of alpha decay and the energy of the emitted alpha particles in 1911?

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SSC CGL 2023 Tier-I Official Paper (Held On: 21 Jul 2023 Shift 4)

Answer 1

The correct answer is Geiger and Nuttall.Key Points

Geiger and Nuttall found the empirical relationship between the half-life of alpha decay and the energy of the emitted alpha particles in 1911.
This relationship is known as the Geiger-Nuttall law, which states that the logarithm of the half-life of an alpha decay is proportional to the reciprocal of the square root of the energy of the alpha particle.
Chadwick and Lawrence discovered the neutron in 1932, which was a significant breakthrough in nuclear physics.
Fermi and Meitner were instrumental in the discovery of nuclear fission in 1938.
Soddy and Aston made important contributions to the development of the theory of isotopes.

Additional Information

Chadwick and Lawrence's discovery of the neutron was crucial for understanding the structure of the atomic nucleus and paved the way for the development of nuclear weapons.
- A subatomic particle with a neutral charge and a mass somewhat larger than a proton is called a neutron.
Fermi and Meitner's discovery of nuclear fission was a major breakthrough that led to the development of nuclear energy and nuclear weapons.
- Nuclear fission is the process by which an atom's nucleus breaks into lighter nuclei via a .nuclear reaction
Soddy and Aston's work on isotopes helped to establish the concept of atomic number and laid the foundation for modern nuclear physics.
- Isotopes are atoms that have the same number of protons but differ in the number of neutrons.