MEDIUM

JEE Main

IMPORTANT

Earn 100

The frequency $(ν)$ of an oscillating liquid drop may depend upon radius $(r)$ of the drop, density $(ρ)$ of liquid and the surface tension $(s)$ of the liquid as: $ν = r^{a} ρ^{b} s^{c}$ . The values of $a, b$ and $c$ respectively are

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Important Questions on Physics and Measurement

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 25 January 2023 Shift 1>Q 117

Match List I with List II

List - I		List - II
A	Surface tension	I.	$kg m^{- 1} s^{- 1}$
B	Pressure	II.	$kg m s^{- 1}$
C	Viscosity	III.	$kg m^{- 1} s^{- 2}$
D	Impulse	IV.	$kg s^{- 2}$

Choose the correct answer from the options given below:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 25 January 2023 Shift 2>Q 118

Match List I with List II

	List		List II
A	Young's Modulus $(Y)$	I	$[{ML}^{- 1} T^{- 1}]$
B	Co-efficient of Viscosity $(η)$	II	$[{ML}^{2} T^{- 1}]$
C	Planck's Constant $(h)$	III	$[{ML}^{- 1} T^{- 2}]$
D	Work Function $(ϕ)$	IV	$[{ML}^{2} T^{- 2}]$

Choose the correct answer from the options given below:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 29 January 2023 Shift 1>Q 119

Match List I with List II :

	List-I (Physical Quantity)		List-II (Dimensional Formula)
A	Pressure gradient	I	$[M^{0} L^{2} T^{- 2}]$
B	Energy density	II	$[M^{1} L^{- 1} T^{- 2}]$
C	Electric Field	III	$[M^{1} L^{- 2} T^{- 2}]$
D	Latent heat	IV	$[M^{1} L^{1} T^{- 3} A^{- 1}]$

Choose the correct answer from the options given below:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 29 January 2023 Shift 2>Q 120

The equation of a circle is given by $x^{2} + y^{2} = a^{2}$ , where $a$ is the radius. If the equation is modified to change the origin other than $(0, 0)$ , then find out the correct dimensions of $A$ and $B$ in a new equation :

${(x - A t)}^{2} + {(y - \frac{t}{B})}^{2} = a^{2}$

The dimensions of $t$ is given as $[T^{- 1}]$

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 30 January 2023 Shift 1>Q 121

Electric field in a certain region is given by

\vec{E} = (\frac{A}{x^{2}} \hat{i} + \frac{B}{y^{3}} \hat{j})

. The SI unit of

A

and

B

are :

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 30 January 2023 Shift 1>Q 122

In a screw gauge, there are

100

divisions on the circular scale and the main scale moves by

0.5 mm

on a complete rotation of the circular scale. The zero of circular scale lies

6

divisions below the line of graduation when two studs are brought in contact with each other. When a wire is placed between the studs,

4

linear scale divisions are clearly visible while 46^th division the circular scale coincide with the reference line. The diameter of the wire is ______

\times 10^{- 2} mm .

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 30 January 2023 Shift 1>Q 123

In an experiment for estimating the value of focal length of converging mirror, image of an object placed at

40 cm

from the pole of the mirror is formed at distance

120 cm

from the pole of the mirror. These distances are measured with a modified scale in which there are

20

small divisions in

1 cm

. The value of error in measurement of focal length of the mirror is

\frac{1}{K} cm

. The value of

K

is ______.

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 30 January 2023 Shift 2>Q 124

Match List I with List II

	List I		List II
A	Torque	I	$kg m^{- 1} s^{- 2}$
B	Energy density	II	$kg m s^{- 1}$
C	Pressure gradient	III	$kg m^{- 2} s^{- 2}$
D	Impulse	IV	$kg m^{2} s^{- 2}$

Choose the correct answer from the options given below :

The frequency ν of an oscillating liquid drop may depend upon radius r of the drop, density ρ of liquid and the surface tension s of the liquid as: ν=raρbsc. The values of a, b and c respectively are

Important Questions on Physics and Measurement

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The frequency $(ν)$ of an oscillating liquid drop may depend upon radius $(r)$ of the drop, density $(ρ)$ of liquid and the surface tension $(s)$ of the liquid as: $ν = r^{a} ρ^{b} s^{c}$ . The values of $a, b$ and $c$ respectively are