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Viva questions for Physics Class 12
विज्ञान 10 – महत्वपूर्ण MCQs
Fundamentals of Arithmetic
Science 10 – Important MCQs

Unit and Dimension

Unit and Dimension

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Question 1 of 12

1. Question

Identify dimensionless quantity?

\(time \)

\(mass \)

\(length \)

\(solid \ angle\)

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Question 2 of 12

2. Question

Which of the physical quantity is not paired correctly with its dimension?

[velocity] = \([M^{0}L^{1}T^{-1}] \)

[force] = \([M^{1}L^{1}T^{-2}] \)

[energy]= \([M^{1}L^{2}T^{-2}] \)

[momentum]=\([M^{0}L^{1}T^{-1}] \)

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Question 3 of 12

3. Question

Which of the following has different dimension?

work

energy

torque

power

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Question 4 of 12

4. Question

Which of the physical quantity is not paired correctly with its dimension?

[Planck’s constant] = [ML²T^-1]

[Boltzmann constant]= [ML²T^-2K^-1]

[Universal gas constant]= [ML²T^-2K^-1mol^-1]

[Gravitational constant]= [M^-1L²T^-2]

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Question 5 of 12

5. Question

Physical quantity that is not dimensionless is

strain

emissivity

stress

angle

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Question 6 of 12

6. Question

Which of the following has different dimension than others?

Stress

surface tension

pressure

modulus of elasticity

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Question 7 of 12

7. Question

Which of the following pair does not have same dimension?

force and torque

impulse and momentum

surface tension and surface energy

work and heat

strain and angle

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Question 8 of 12

8. Question

Each of the pair contains a physical quantity and its dimension. Which is not correct pair ?

[Frequency] =[M⁰L⁰T^-1]

[Angular Velocity] = [M⁰L⁰T^-1]

[Charge] =[M⁰L⁰T¹A¹]

[Density] = [M¹L^-2T⁰]

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Question 9 of 12

9. Question

Heat, work, energy, torque all have same dimension. What is it?

[M¹L¹T^-2]

[M¹L²T^-2]

[M¹L^-1T^-2]

[M²L²T^-2]

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Question 10 of 12

10. Question

Which of the physical quantity is not correctly matched with its dimension?

[electric field ] = [MLT^-2A^-2]

[capacitance ] = [M^-1L^-2T⁴A²]

[electric potential difference ] = [ML²T^-3A^-1]

[electrical resistivity] =[ML³T^-3A^-2]

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Question 11 of 12

11. Question
Which of the following have same dimensions?
1. Specific heat capacity
2. Heat capacity
3. Molar heat capacity
4. Heat
1 and 2 only

1 and 3 only

1,2 and 3 only

All of them

None of them
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Question 12 of 12

12. Question

Dimension analysis cannot be used

to establish relationship between physical quantities

to convert unit of a physical quantity from one unit system to another

to calculate numerical values in a mathematical relationship of physical quantities

to check consistency (validity) of given physical equation

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Passion JEE

"Stronger the roots, Brighter the future"

Points Table
Viva questions for Physics Class 12
विज्ञान 10 – महत्वपूर्ण MCQs
Fundamentals of Arithmetic
Science 10 – Important MCQs

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