TNPSC Physics General Knowledge Questions and Answers - 2

Question: 6

Reactors used to supply neutrons for research purpose and for production of radioisotopes are called

(A) research reactors

(B) breedor reactors

(C) production reactors

(D) power reactors

Ans: A

research reactors

Question: 7

The heavier particle group of elementary particles are called

(A) Leptons

(B) Photons

(C) Baryons

(D) Mesons

Ans: C

Baryons

Question: 8

Nuclear density

(A) varies according to shape

(B) varies according to size

(C) is almost a constant for all nuclei irrespective of its size

(D) all the above

Ans: C

is almost a constant for all nuclei irrespective of its size

Question: 9

In carbon nitrogen cycle _____ acts as a catalyst.

(A) nitrogen

(B) oxygen

(C) carbon

(D) hydrogen

Ans: C

carbon

Question: 10

The maximum binding energy per nucleon corresponds to _____ nucleus.

(A) Iron

(B) Oxygen

(C) Berrylium

(D) Helium

Ans: A

Iron

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