100+ TNPSC Group 1 Previous year Question Papers with Answers Pdf - 1

Question: 1

The most abundant metal in earth crust is

(A) aluminium

(B) calcium

(C) iron

(D) magnesium

Question: 2

Natural radioactivity was discovered by

(A) becquerel

(B) curic

(C) rutherford

(D) schmidt

Question: 3

The positive charge carriers in semiconductor are

(A) holes

(B) positrons

(C) protons

(D) positive ions

Question: 4

Which one of the following groups have quantities that do not have the same direction?

(A) pressure, stress

(B) work, energy

(C) velocity, speed

(D) force, impulse

Question: 5

The excess of pressure inside a drop or bubble is

(A) inversely proportional to its surface tension

(B) inversely proportional to its radius

(C) directly proportional to its radius

(D) directly proportional to its mass