Match List I with List II List I List II A . Planck's constant h I . M 1 L 2 T - 2 B . Stopping potential V s II . M 1 L 1 T - 1 C . Work function ϕ III . M 1 L 2 T - 1 D . Momentum p IV . M 1 L 2 T - 3 A - 1

A - III , B - IV , C - I , D - II

A - III , B - I , C - II , D - IV

A - II , B - IV , C - III , D - I

A - I , B - III , C - IV , D - II

EASY

JEE Main

IMPORTANT

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A travelling microscope has $20$ divisions per $cm$ on the main scale while its Vernier scale has total $50$ divisions and $25$ Vernier scale divisions are equal to $24$ main scale divisions, what is the least count of the travelling microscope ?

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Important Questions on Physics and Measurement

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 29 July 2022 Shift 1>Q 114

In an experiment to find out the diameter of wire using screw gauge, the following observation were noted:

Question Image

(a) Screw moves $0.5 mm$ on main scale in one complete rotation
(b) Total divisions on circular scale $= 50$
(c) Main scale reading is $2.5 mm$
(d) $45^{th}$ division of circular scale is in the pitch line
(e) Instrument has $0.03 mm$ negative error Then the diameter of wire is :

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 24 January 2023 Shift 1>Q 115

Match List I with List II

List I		List II
$A .$	Planck's constant $(h)$	$I .$	$[M^{1} L^{2} T^{- 2}]$
$B .$	Stopping potential $(V_{s})$	$II .$	$[M^{1} L^{1} T^{- 1}]$
$C .$	Work function $(ϕ)$	$III .$	$[M^{1} L^{2} T^{- 1}]$
$D .$	Momentum $(p)$	$IV .$	$[M^{1} L^{2} T^{- 3} A^{- 1}]$

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 1 - Physics and Measurement>JEE Main - 24 January 2023 Shift 2>Q 116

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

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 :

A travelling microscope has 20 divisions per cm on the main scale while its Vernier scale has total 50 divisions and 25 Vernier scale divisions are equal to 24 main scale divisions, what is the least count of the travelling microscope ?

Important Questions on Physics and Measurement

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A travelling microscope has $20$ divisions per $cm$ on the main scale while its Vernier scale has total $50$ divisions and $25$ Vernier scale divisions are equal to $24$ main scale divisions, what is the least count of the travelling microscope ?