Which of the following is used for shielding radioactive fall-outs?
Plastic
Wood
Textile
Aluminium
Lead
Correct answer is E
No explanation has been provided for this answer.
Which of the following cannot be explained by the molecular theory of matter?
Conduction
Radiation
Convection
Evaporation
Expansion
Correct answer is B
No explanation has been provided for this answer.
Which of the following is not a product of nuclear fission?
Alpha particle
Beta particle
Gamma ray
X-ray
Neutron
Correct answer is D
No explanation has been provided for this answer.
20
100
600
900
1000
Correct answer is D
No explanation has been provided for this answer.
1 day
2 days
8 days
24 days
42 days
Correct answer is D
No explanation has been provided for this answer.