HARD

JEE Main

IMPORTANT

Earn 100

Water from a pipe is coming at a rate of $100$ liters per minute. If the radius of the pipe is $5 c m,$ the Reynolds number for the flow is of the order of: (density of water = $100 k g / m^{3},$ coefficient of viscosity of water $= 1 m P a s)$

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Important Questions on Properties of Solid and Liquid

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 7 - Properties of Solid and Liquid>JEE Main - 8th April 2019 Shift 2>Q 58

Young's moduli of two wires

A

and

B

are in the ratio

7 : 4

. Wire

A

2 m

long and has radius

R .

Wire

B

1.5 m

long and has radius

2 m m .

If the two wires stretch by the same length for a given load, the value of

R

is close to:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 7 - Properties of Solid and Liquid>JEE Main - 10th April 2019 Shift 1>Q 59

The ratio of surface tensions of mercury and water is given to be

7.5

, while the ratio of their densities is

13.6

. Their contact angles, with glass, are close to

135 °

and

0 °

, respectively. If it is observed that mercury gets depressed by an amount

h

in a capillary tube of radius

r_{1}

, while water rises by the same amount

h

in a capillary tube of radius

r_{2}

, then the ratio

\frac{r_{1}}{r_{2}}

is close to

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 7 - Properties of Solid and Liquid>JEE Main - 10th April 2019 Shift 2>Q 60

The elastic limit of brass is

379 M P a

. The minimum diameter of a brass rod if it is to support a

400 N

load without exceeding its elastic limit will be

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 7 - Properties of Solid and Liquid>JEE Main - 10th April 2019 Shift 2>Q 61

A cubical block of side

0.5 m

floats on water with

30 %

of its volume under water. What is the maximum weight that can be put on the block without fully submerging it under water?
[Take, density of water

= 10^{3} k g / m^{3}

]

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 7 - Properties of Solid and Liquid>JEE Main - 10th April 2019 Shift 2>Q 62

In an experiment, brass and steel wires of length

1 m

each with areas of cross section

1 m m^{2}

are used. The wires are connected in series and one end of the combined wire is connected to a rigid support and other end is subjected to elongation. The stress required to produce a net elongation of

0.2 m m

is,
[Given, the Young's Modulus for steel and brass are, respectively,

120 \times 10^{9} N / m^{2}

and

60 \times 10^{9} N / m^{2}

]

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 7 - Properties of Solid and Liquid>JEE Main - 10th April 2019 Shift 2>Q 63

Water from a tap emerges vertically downwards with an initial speed of

1.0 m s^{- 1}

. The cross

-

sectional area of the tap is

10^{- 4} m^{2}

. Assume that the pressure is constant throughout the stream of water and that the flow is streamlined. The cross

-

sectional area of the stream,

0.15 m

below the tap would be:
(Take

g = 10 m s^{- 2}

)

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 7 - Properties of Solid and Liquid>JEE Main - 10th April 2019 Shift 2>Q 64

A submarine experiences a pressure of

5.05 \times 10^{6} P a

at a depth of

d_{1}

in a sea. When it goes further to a depth of

d_{2}

, it experiences a pressure of

8.08 \times 10^{6} P a

. Then

d_{2} - d_{1}

is approximately (density of water

= 10^{3} k g / m^{3}

and acceleration due to gravity

= 10 m s^{- 2}

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 7 - Properties of Solid and Liquid>JEE Main - 10th January 2019 Shift 1>Q 65

Water flows into a large tank with flat bottom at the rate of

10^{- 4} m^{3} s^{- 1} .

Water is also leaking out of a hole of area

1 c m^{2}

at its bottom. If the height of the water in the tank remains steady then this height is:

Water from a pipe is coming at a rate of 100 liters per minute. If the radius of the pipe is 5 cm, the Reynolds number for the flow is of the order of: (density of water = 100 kg/m3, coefficient of viscosity of water =1 mPa s)

Important Questions on Properties of Solid and Liquid

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Water from a pipe is coming at a rate of $100$ liters per minute. If the radius of the pipe is $5 c m,$ the Reynolds number for the flow is of the order of: (density of water = $100 k g / m^{3},$ coefficient of viscosity of water $= 1 m P a s)$