Modern Physics MCQ for NEET - 1

Question: 1

Which of the particles has similar mass to that of the electron?

(A) Neutrino

(B) Positron

(C) Neutron

(D) Proton

Ans: B

Positron

Question: 2

The ratio of specific charges of an alpha particle to that of a proton is

(A) 1/2

(B) 1/3

(C) 1/1

(D) 2/1

Ans: A

1/2

Question: 3

The cause of fractional atomic weights of elements is the presence of

(A) Isotones

(B) Isobars

(C) Isotopes

(D) None of these

Ans: C

Isotopes

Question: 4

Voltage applied between the electrodes of discharge tube is of the nature

(A) Voltage obtained by induction coil

(B) 220 V alternating voltage

(C) 220 V DC voltage

(D) Variable voltage

Ans: A

Voltage obtained by induction coil

Question: 5

The mass energy relation is the outcome of

(A) Special theory of relativity

(B) Quantum theory

(C) Field theory of relativity

(D) General theory of relativity

Ans: A

Special theory of relativity

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