SI unit of heat is

(a)

calorie

(b)

joule

(c)

kilo calorie

(d)

kelvin

All the substances will undergo the following changes like _____ when heated.

(a)

increase in temperature

(b)

expansion of substance

(c)

change of state

(d)

all the above

Thermal expansion at particular temperature is less in

(a)

solid

(b)

liquid

(c)

gas

(d)

all above

Increase in area due to heating is called

(a)

Linear expansion

(b)

Superficial expansion

(c)

Cubical expansion

(d)

real expansion

Change in volume of a solid during heating is

(a)

Linear expansion

(b)

Superficial expansion

(c)

Cubical expansion

(d)

apparent expansion