601. The diameter of an atom is approximately_______________?
A. 10-12m
B. 10-11m
C. 10-10m
D. 10-14m

602. Radioactive decay obeys which one of the following law ?
A. N=Noe-λt
B. N=Noeλt
C. N=Noe-λt/2
D. No=N(1+eλt)

603. Average energy required to remove one nucleon from the nucleus is called__________________?
A. Binding energy per nucleon
B. Energy of decay
C. Destruction energy
D. All of above

604. The fission chain reaction in a nuclear reactor can be controlled by introducing _______________?
A. Iron rods
B. Graphite rods
C. Cadmium rods
D. Platinum rods

605. Which one of the following radiations possesses maximum velocity ?
A. α-rays
B. β-rays
C. γ-rays
D. All of above have the same speed

606. The charge on an electron was determine by ________________?
A. Ampere
B. Maxwell
C. Millikan
D. Thomson

607. The charge on neutron is_______________?
A. Plus 1.6 x 10-19C
B. Zero
C. Minus 1.6 x 10-19C
D. No definite charge

608. A particle having the mass of an electron and the charge of a proton is called a______________?
A. Antiproton
B. Positron
C. Gamma rays
D. Photon

609. Mass of neutron is________________?
A. 1.67 x 10-31 kg
B. 1.67 x 10-27 kg
C. 9.1 x 10-31 kg
D. 1.67 x 10-19 kg

610. Nuclei having the same mass number but different atomic number are____________?
A. Isotopes
B. Isobars
C. Isotones
D. Isomers

NOTE
IF YOU THINK ANY OF THE MCQ ABOVE IS WRONG.
PLEASE COMMENT WITH CORRECT ANSWER AND ITS DETAIL EXPLANATION IN COMMENT BOX.
THANK YOU

Leave a Reply