Which one of the following possesses greater penetration power ? April 17, 2025 by admin A. α-rays B. β-rays C. γ-rays D. Neutron-rays
The most useful tracer is_________________? April 17, 2025 by admin A. Sr-90 B. I-131 C. CA-41 D. C-14
X-rays are electromagnetic waves like________________? April 17, 2025 by admin A. Light waves B. Heat waves C. Microwaves D. γ-rays
Why gamma rays are used to kill bacteria to sterilize surgical equipment etc ? April 17, 2025 by admin A. Chargeless B. Massless C. Highly penetrating D. All of above
Beta particles ionize an atom_________________? April 17, 2025 by admin A. Due to the electrostatic force of attraction B. Due to the electrostatic force of repulsion C. Due to a direct collision D. Due to the gravitational force
Alpha particles possess greater penetration power than that of beta particles due to its_____________? April 17, 2025 by admin A. Smaller ionization power B. Greater ionization power C. Neither greater nor smaller ionization power D. Same ionization power
Pair production cannot take place in a vacuum as ________________? April 17, 2025 by admin A. Mass is not conserved B. Energy is not conserved C. Momentum is not conserved D. The chargee is not conserved
Pair production can take place only with_________________? April 17, 2025 by admin A. X-rays B. Gamma rays C. UV-rays D. IR-rays
A device for producing high-velocity nuclei is ________________? April 17, 2025 by admin A. Cloud chamber B. Linear accelerator C. A mass spectrograph D. Wilson cloud chamber
