Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 12

EASY

9th CBSE

IMPORTANT

Earn 100

The density of turpentine oil is $840 kg m^{- 3}$ . What will be its relative density?

Important Questions on Gravitation

MEDIUM

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 13

The density of gold is

19 g c m^{- 3}

. Find the volume of

95 g

of gold.

MEDIUM

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 14

A thread of mercury of

10.2 g

is in a tube of uniform cross-section

0.1 c m^{2}

. Calculate the length of the thread. The density of mercury is

13.6 g c m^{- 3}

.

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 15

An iron cylinder of radius

1.4 cm

and length

8 c m

is found to weigh

369.6 g

. Calculate the density of iron.

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 16

Find the mass of air enclosed in a hall of length, breadth and height equal to

5 m, 3 m

and

4 m

respectively, taking density of air

= 1 .3 kg m^{- 3}

.

MEDIUM

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 17

The mass of an empty bucket of capacity

40 litres

is

8 k g

. Find its mass when it is filled completely with a liquid whose density is

700 k g m^{- 3}

.

MEDIUM

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 18

The mass of a density bottle is

25 g

when empty,

50 g

when filled completely with water and

365 g

when filled completely with mercury. Find the density of mercury.

MEDIUM

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 19

Calculate the mass of a body whose volume is

2 m^{3}

and relative density is

0.52

.

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 3 - Gravitation>Exercise>Q 20

A jar can hold

100 g

of water. Find mass of seawater (density

= 1030 k g m^{- 3}

) it can hold.