Physics

# The unit of length, mass and energy are doubled.Which of the  following is /are correct?

unit of momentum is doubled

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Single Correct Medium Published on 18th 08, 2020
Questions 244531
Subjects 8
Chapters 125
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#### Realted Questions

Q1 Single Correct Medium
Which of the following weighing devices has a very high accuracy and sensitivity ?
• A. Beam balance
• B. Grocer's balance
• C. Physical balance
• D. Spring balance.

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q2 Single Correct Medium
The dimensional formula of angular velocity $\left(\omega=\cfrac{v}{r}\right)$ is
• A. $ML^oT^{-2}$
• B. $MLT^{-1}$
• C. $M^0L^0T^{-1}$
• D. $ML^oT^{1}$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q3 Matrix Medium
Match the following:
 Energy $ML^{-1}T^{-2}$ Torque $ML^2T^{-2}$ Planks Constant $ML^2T^{-1}$ Angular Momentum $MLT^{-1}$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q4 Single Correct Medium
In a given system of units, 1 unit of mass = 2 kg. 1 unit of length = 5 m and 1 unit of time = 5 sec. then in this system, 1 N represents:
• A. 5/2 units of force
• B. 2/5 units of force
• C. 2 units of force
• D. 1/2 units of force

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q5 Single Correct Medium
If the units of $M$ and $L$ are increased four times, then the unit of energy will be increased by:-
• A. 16 times
• B. 6 times
• C. 27 times
• D. 81 times

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020