Physics MCQ Questions Answers General Knowledge Set

11)Permanent magnet can be made from

a) cobalt

b) Aluminium

c) zinc

d) lead

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Option -a)

12) Compton effect is associated with

a) positive rays

b) b-rays

c) y-rays

d) X-rays

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Option -d)

13) Which of the following particles is unstable

a) proton

b) electron

c) photon

d) neutron

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Option -d)

14)Which of the following is not a semiconductor

a) germanium

b) silicon

c) arsenic

d) all of these

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Option – c)

15) The resistance of a pn junction in forward bias is

a) zero

b) low

c) high

d) infinite

View Answer
Option -b)