A _ is a positively charged particle with properties similar to the α-particle. Its mass is one fourth and charge is one half of that of an α-particle. It is smaller in size and carries less energy at the same velocity.
Correct answer: D. Proton
- A. Beta particle
- B. Gamma ray
- C. Neutron
- D. Proton
Explanation
An alpha particle have : Mass: 4 times the mass of proton, =6.68×10^-27 kg, so that means, mass of protons is ¼ times of that of an alpha particle. Charge: 2 times the charge of proton, =3.2×10^-19 Coulomb. It means charge of proton is ½ of that of an alpha particle
Last updated
About Nuclear Physics
Atomic nuclei contain protons and neutrons, with nuclear size, mass defect and binding energy describing their stability. The work covers alpha, beta and gamma decay, decay equations, half-life and decay rate, along with radiation safety and medical applications such as imaging, radiotherapy and tracers.
Practise Nuclear Physics
1,254 free Nuclear Physics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Physics questions like this
Physics is on 13 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.