1000+ TNPSC VAO Study Material in Tamil and English 2023-2024 Pdf - 2

Question: 6

Radioactive isotope of hydrogen is

(A) tritium

(B) deuterm

(C) protium

(D) all of the above

Question: 7

A geostationary satellite should be launched such that it moves from

(A) north to south in the polar plane

(B) west to east in the equatorial plane

(C) south to north in the polar plane

(D) east to west in the equatorial plane

Question: 8

In a transistor, the base is

(A) an extrinsic semiconductor

(B) a conductor of high resistance

(C) a conductor of low resistance

(D) an insulator

Question: 9

Masses of stars and galaxies are usually expressed in terms of

(A) lunar mass

(B) solar mass

(C) earth’s mass

(D) neutron mass

Question: 10

A rocket works on the principle of conservation of

(A) angular momentum

(B) energy

(C) linear momentum

(D) mass