Which of the following is not a safety precaution in a nuclear station?
Radioactive materials are stored in glass casings
Radioactive materials are handled with remote-controlled tongs
Technicians in nuclear stations wear radio-sensitive badges which are checked regularly.
Technicians in nuclear stations wear radio-sensitive badges which are checked regularly.
Correct answer is B
No explanation has been provided for this answer.
Which of the following are the essential parts of an atomic bomb?
Uranium and neutrons
Radium and polonium
Nitrogen and neutrons
ranium and α - particles.
Correct answer is A
No explanation has been provided for this answer.
I only
II only
I and II only
II and III only
Correct answer is D
No explanation has been provided for this answer.
The half-life of a radioactive element is 5 Calculate its decay constant
0.113s-1
0.436 s-1
0.139 s-1
0.193 s-1.
Correct answer is C
No explanation has been provided for this answer.
2.01 X 1015Hz
1.06x1015Hz
6.30 x 1014Hz
1.60 x 1014Hz
Correct answer is B
No explanation has been provided for this answer.