Which of the following will be a better shield against gamma rays ?
A. Ordinary water
B. Heavy water
C. Lead
D. Aluminum
Physics Mcqs
A device for producing high-velocity nuclei is ________________?
A device for producing high-velocity nuclei is ________________?
A. Cloud chamber
B. Linear accelerator
C. A mass spectrograph
D. Wilson cloud chamber
Pair production can take place only with_________________?
Pair production can take place only with_________________?
A. X-rays
B. Gamma rays
C. UV-rays
D. IR-rays
Pair production cannot take place in a vacuum as ________________?
Pair production cannot take place in a vacuum as ________________?
A. Mass is not conserved
B. Energy is not conserved
C. Momentum is not conserved
D. The chargee is not conserved
Alpha particles possess greater penetration power than that of beta particles due to its_____________?
Alpha particles possess greater penetration power than that of beta particles due to its_____________?
A. Smaller ionization power
B. Greater ionization power
C. Neither greater nor smaller ionization power
D. Same ionization power
Beta particles ionize an atom_________________?
Beta particles ionize an atom_________________?
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
Why gamma rays are used to kill bacteria to sterilize surgical equipment etc ?
Why gamma rays are used to kill bacteria to sterilize surgical equipment etc ?
A. Chargeless
B. Massless
C. Highly penetrating
D. All of above
The charge on beta particle is________________?
The charge on beta particle is________________?
A. 1
B. -1
C. +2
D. -2
X-rays are electromagnetic waves like________________?
X-rays are electromagnetic waves like________________?
A. Light waves
B. Heat waves
C. Microwaves
D. γ-rays
The most useful tracer is_________________?
The most useful tracer is_________________?
A. Sr-90
B. I-131
C. CA-41
D. C-14