Home
Class 11
PHYSICS
Why do we have different units for same ...

Why do we have different units for same physical quantity?

Text Solution

Verified by Experts

The value of any given physical quantity may vary over a wide range, therefore, different units of same physical quantity are required.
e.g.,The length of a pen can be easily measured in cm, the height of a tree can be measured in metres, the distance between two cities can be measured in kilometres and distance between two heavenly bodies can be measured in light year.
Promotional Banner

Topper's Solved these Questions

  • UNITS AND MEASUREMENTS

    NCERT EXEMPLAR ENGLISH|Exercise Short Answer Type Questions|11 Videos

  • UNITS AND MEASUREMENTS

    NCERT EXEMPLAR ENGLISH|Exercise Long Answer Type Questions|9 Videos

  • UNITS AND MEASUREMENTS

    NCERT EXEMPLAR ENGLISH|Exercise Long Answer Type Questions|9 Videos

  • THERMODYNAMICS

    NCERT EXEMPLAR ENGLISH|Exercise LONG ANSWER TYPE QUESTIONS|5 Videos

  • WAVES

    NCERT EXEMPLAR ENGLISH|Exercise LONG ANSWER TYPE QUESTIONS|5 Videos

Similar Questions

Explore conceptually related problems

Weber is the unit of which physical quantity?

As far as mechanics is concerned all systems of units are having the same dimensions for a given physical quantity. But for thermodynamics, electricity, magnetism and electromagnetics this is not the case. Why?

State about the correctness or otherwise of the following two statements. i) A physical quanity can have dimensions but no units. ii) A physical quantity can have units but no dimensions.

Do "work done by the battery" and "the thermal energy developed"represent two names of the same physical quantity?

Consider following statement :- (A) any physical quantity may have more one unit. (B) Any physical quantity have only one dimensional formula (C ) More than one physical quantities may have same dimension. (D) We can add & subtract only those expression having same dimension. Number of correct statements is :-

Which of the following pairs represent of the same physical quantities?

The numerical values and units of a physical quantity in two different system of units are n_(1), n_(2) and u_(1), u_(2) respectively. Then

The non-SI and SI units of some physical quantities are given in Column A and Column B respectively. Match the units belonging to the same physical quantity.

If A and B are two physical quantities having different dimensions then which of the following can denote a new physical quantity?

What are the three requirements for selecting a unit of a physical quantity ?