TNPSC Group 4 Physics Online Mock Test in English & Tamil - 3

Question: 11

To find the area of an irregular lamina, we use a

(A) divider

(B) stop watching

(C) graph paper

(D) measuring jar

Question: 12

Sea water is converted into potable of water by

(A) filtration

(B) electrolysis

(C) reverse osmosis

(D) primary treatment

Question: 13

Volume of water increases when it is cooled below

(A) 100°C

(B) 4°C

(C) 40°C

(D) 273°C

Question: 14

The gravimetric percentage composition of hydrogen and oxygen in water is

(A) 1 : 2

(B) 2: 1

(C) 8 : 1

(D) 11 : 11 : 88 : 89

Question: 15

Latent heat of vapourisation of water is

(A) + 537 cal.

(B) - 537 cal.

(C) +79.7 cal.

(D) -79.7 cal.