Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 2 - Units and Measurement>TOPICWISE QUESTIONS>Q 19

MEDIUM

NEET

IMPORTANT

Earn 100

If the velocity of light $(c)$ , gravitational constant $(G)$ and Planck's constant $(h)$ are chosen as fundamental units, then the dimension of mass in the new system is

84% studentsanswered this correctly

Important Questions on Units and Measurement

EASY

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 2 - Units and Measurement>TOPICWISE QUESTIONS>Q 20

From the dimensional consideration, which of the following equations is correct? (Here $T =$ time period, $R =$ radius, $M =$ mass and $G =$ gravitational constant)

EASY

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 2 - Units and Measurement>TOPICWISE QUESTIONS>Q 21

Distance travelled by a particle, at any time instant

t

, can be represented as

S = A (t + B) + C t^{2}

. The dimensions of

B

are (

A, B

and

C

are constants),

EASY

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 2 - Units and Measurement>TOPICWISE QUESTIONS>Q 22

Two quantities

A

and

B

have different dimensions. Which operation is physically meaningful?

EASY

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 2 - Units and Measurement>TOPICWISE QUESTIONS>Q 23

A spherical body of mass

m

and radius

r

is allowed to fall in a medium of viscosity

η

. The time in which the velocity of the body increases from

0

to

0.63

times the terminal velocity

(v)

is called time constant

τ

. Dimensionally,

τ

can be represented by (given

[η] = [{ML}^{- 1} T^{- 1}]

),

EASY

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 2 - Units and Measurement>TOPICWISE QUESTIONS>Q 24

The SI unit of universal gas constant

(R)

is,

EASY

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 2 - Units and Measurement>TOPICWISE QUESTIONS>Q 25

Dimension of

\frac{1}{μ_{0} ε_{0}}

, where symbols have their usual meanings, is,

MEDIUM

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 2 - Units and Measurement>TOPICWISE QUESTIONS>Q 26

The physical quantities not having same dimensions are,

MEDIUM

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 2 - Units and Measurement>TOPICWISE QUESTIONS>Q 27

Which of the following equations is dimensionally incorrect?

[Here, $t =$ time, $p =$ momentum, $i =$ impulse, $m =$ mass, $g =$ acceleration, $v =$ speed, $F =$ force, $r =$ radius or distance, $L =$ inductance, $C =$ capacitance, $R =$ resistance, $I =$ moment of inertia, $τ =$ torque.]