Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 13

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Earn 100

If $n$ is number and $u$ is the unit of a physical quantity then which of the following is correct for the measurement of $" n "$ -

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Important Questions on Physical World and Measurement

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 14

In

C . G . S .

system, the magnitude of the force is

100 dyne .

In another system where the fundamental physical quantities are kilogram, metre and minute, the magnitude of the force is

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 15

Pick out the right choice

S^{2} = a t^{4} .

Here

S

is measured in meters,

t

in second. Then the unit of

a

is-

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 16

The units of angular momentum are-

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 17

1 eV

is equal to -

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 20

If the units of

M

and

L

are increased three times, then the unit of energy will be increased by

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 21

The S.I. unit of length is "meter". Suppose we adopt a new unit of length which equals

x

meter. Then, the area of

1 m^{2}

expressed in terms of new unit has a magnitude

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 22

Luminous flux is expressed in -

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Alpha Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise-1>Q 25

Which of the following is not a unit of time?