EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 18 - Mechanical Properties of Matter>AP EAPCET 2021 (19-Aug Forenoon)>Q 10

MEDIUM

AP EAPCET

IMPORTANT

Earn 100

The lower end of a capillary tube is dipped into water and it is observed that the water in capillary tube rises by $7.5 cm$ . Find the radius of the capillary tube used, if surface tension of water is $7.5 \times 10^{- 2} N m^{- 1}$ ? Angle of contact between water and glass is $0 °$ and acceleration due to gravity is $10 m s^{- 2}$ .

60% studentsanswered this correctly

Important Questions on Mechanical Properties of Matter

MEDIUM

AP EAPCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 18 - Mechanical Properties of Matter>AP EAPCET 2019 (21-Apr Shift-2)>Q 11

Two capillary tubes of same length each of

50 cm

but of different radii

4 mm

and

2 mm

are connected in series. When water flows, the pressure difference between the ends of the arrangement is

P

. Then the pressure difference between the ends of the first tube is

EASY

AP EAPCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 18 - Mechanical Properties of Matter>AP EAPCET 2021 (19-Aug Afternoon)>Q 12

Identify the incorrect statement regarding Reynold's number

(R_{e}) :

MEDIUM

AP EAPCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 18 - Mechanical Properties of Matter>AP EAPCET 2020 (Sep-23 Shift-1)>Q 13

What is the pressure required to reduce the given volume of water by

1 %

? (Bulk modulus

(K) = 2 \times 10^{8} N m^{- 2}

)

EASY

AP EAPCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 18 - Mechanical Properties of Matter>AP EAPCET 2018 (25-APR Shift-1)>Q 14

A rubber cube of side

5 cm

has one face fixed while a tangential force

1800 N

is applied on its opposite face. If modulus of rigidity of rubber is

2.4 \times 10^{6} N m^{- 2}

, then the lateral displacement of the strained face is______.

MEDIUM

AP EAPCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 18 - Mechanical Properties of Matter>AP EAPCET 2021 (19-Aug Forenoon)>Q 15

The Young's modulus of a rubber string of length

12 cm

and density

1.5 kg m^{- 3}

is

5 \times 10^{8} N m^{- 2}

. When this string is suspended vertically, the increase in its length due to its own weight is (take

g = 10 m s^{- 2}

)

MEDIUM

AP EAPCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 18 - Mechanical Properties of Matter>AP EAPCET 2021 (19-Aug Afternoon)>Q 16

Young's modulus of a wire is

2 \times 10^{11} N m^{- 2}

. If an external stretching force of

2 \times 10^{11} N

is applied to a wire of length

L

, the final length of the wire is (cross-section

=

unity)