TNPSC Group 4 Physics Online Mock Test in English & Tamil - 2

Question: 6

The S.I. unit of time is

(A) day

(B) hour

(C) second

(D) minute

Question: 7

The density of sea water is

(A) 800 kg^-3

(B) 920 kg^-3

(C) 1000 kg^-3

(D) 1026 kg^-3

Question: 8

The mass per unit volume of a substance is called

(A) force

(B) area

(C) density

(D) force

Question: 9

Liquids do not have definite

(A) shape

(B) volume

(C) mass

(D) density

Question: 10

The amount of surface occupied by an object is called

(A) area

(B) volume

(C) diameter

(D) length