Question

Which of the following sets cannot enters into the list of fundamental quantities in any sytem of unit?

a.lenght , time and velocity
b. length , mass and velocity
c. mass , time and velocitas
d. Length , time and mass​

Answer 1

Explanation:

Mass is a fundamental quantity in any systems of unit and in option (b) it is not present.

So it cannot enter into the list of fundamental quantities

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Answer 2

Question:-

Which of the following sets cannot enter into the list of fundamental quantities in any system of units.

a. length ,mass and velocity

b. length, time and velocity

c. mass, time and velocity

d. length, time and mass

Answer:-

a. length ,mass and velocity

b. length, time and velocity

c. mass, time and velocity

Here they cannot enter into the list of Fundamental quantities because velocity is derived quantity and these sets contain velocity which we cannot put in the fundamental quantities because we derive velocity with the help of displacement and time...

S.I unit of velocity is metre per second m/s.

S.I unit of length is metre (m).

S.I unit of time is second (s).

S.I unit of mass is kilogram (kg).

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What are Fundamental quantities?

Quantities which are independent of other physical quantities or cannot be obtained by the combination of two or more quantities.

What are Fundamental units?

The units which can neither be derived from one another nor resolved broken into anything more basic are called fundamental units.

For example :-

Mass - kilogram

length - metre

Time - second

Temperature - kelvin

What are derived quantities?

Quantities that can be obtained by the combination of two or more fundamental quantities are called drived quantities.

What are derived units?

Any unit which can be obtained by the combination of one or more fundamental units is called derived unit.

For example:-

Acceleration - metre per square second

Velocity - metre per second

Momentum - kilogram metre per second

Force - kilogram metre per square second.

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