Practice MCQ Questions and answers on Physics-GK

In beta decay what is emitted electron.

Radio waves have the longest wavelength, and gamma rays have the shortest wavelength.

Nuclear Fission is caused by the impact of neutron.

Radiocarbon dating technique is used to estimate the age of fossils.

Particle physics studies the nature of particles, while nuclear physics studies the atomic nuclei.

Alpha is the least penetrating, while gamma is the most penetrating.

Gamma rays are emissions that have neither mass nor charge.

In the gamma decay of a nucleus neither the mass number nor the atomic number of the nucleus changes.

Homi Jehangir Bhabha was an Indian nuclear physicist, founding director, and professor of physics at the Tata Institute of Fundamental Research. Colloquially known as “father of Indian nuclear programme,” Bhabha gained international prominence after deriving a correct expression for the probability of scattering positrons by electrons, a process now known as Bhabha scattering. His major contribution included his work on Compton scattering, R process, and furthermore the advancement of nuclear physics. He was awarded Padma Bhushan by Government of India in 1954.

Gamma-rays do not carry any charge. These rays do not have any mass and hence can not be considered to be made up of particles.