An alpha particle can produce fluorescence in__________________?
(A) ZnS
(B) Barium platinocyanide
(C) Calcium tungstate
(D) All of above
Geiger counter is suitable for _________________?
(A) Fast counting
(B) Extremely fast counting
(C) Slow counting
(D) All situations
The penetration power of alpha particle as compared to beta particle is_______________?
(A) 10 times more
(B) 100 times more
(C) 100 times less
(D) 10 times less
Which branch of science plays an important role in the development of technology and engineering ?
(A) Chemistry
(B) Physics
(C) Geology
(D) Biology
Radiations are used for the treatment of skin of a patient is_______________?
(A) Alpha rays
(B) Gamma rays
(C) Beta rays
(D) X-rays
The maximum safe limit dose for persons working in a nuclear power station is ________________?
(A) 1 rem per week
(B) 5 rem per week
(C) 4 rem per week
(D) 3 rem per week
Which of the following will be a better shield against gamma rays ?
(A) Ordinary water
(B) Heavy water
(C) Lead
(D) Aluminum
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_________________?
(A) X-rays
(B) Gamma rays
(C) UV-rays
(D) IR-rays
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