ï»¿ State the number of significant figures in the following :a)Â 0.007 m2b) 2.64 1024kg(c) 0.2370 g cmâ€“3(d) 6.320 JÂ (e) 6.032 N m â€“2Â (f) 0.0006032 m2 from Physics Units and Measurement Class 11 Manipur Board

Chapter Chosen

Units and Measurement

Physics Part I

Book Store

Currently only available for.
CBSE Gujarat Board Haryana Board

Previous Year Papers

Download the PDF Question Papers Free for off line practice and view the Solutions online.
Currently only available for.
Class 10 Class 12
State the number of significant figures in the following :
a)Â 0.007 m2

b) 2.64 1024kg
(c) 0.2370 g cmâ€“3
(d) 6.320 JÂ
(e) 6.032 N m
â€“2Â
(f) 0.0006032 m2

a) 1

The given quantity is 0.007 m2

If the number is less than one, then all zeros on the right of the decimal point (but left toÂ the first non-zero) are insignificant. This means that here, two zeros after the decimal areÂ not significant. Hence, only 7 is a significant figure in this quantity.Â

b) 3Â

Here, the power of 10 is irrelevant for the determination of significant figures. Hence, all the digits are significant figures.

c) 4Â

d) 4

e) 4

f) 4

214 Views

Give four examples of physical quantities.

Examples of Physical quantitie are force, mass, density and power.
821 Views

What is measurement?

Measurement is the process of attaching a numeric value to an aspect of a natural phenomenon. Measurement is making the quantitative knowledge of a physical quantity.
1289 Views

Define unit.

The quantity used as a standard of measurement is called unit.

Example: Unit of time is second.

1172 Views

What is the need of measurement?

To get the complete knowledge of any physical quantity, measurement is needed. Measurement of any physical quantity involves comparison with a certain basic, arbitrarily chosen, internationally accepted reference standard called unit. Knowledge without measurement is incomplete and unsatisfactory.
825 Views

Define physical quantity.

A measurable quantity in terms of which laws of Physics can be expressed is called physical quantity.

The result of a measurement of a physical quantity is expressed by a number accompanied by a unit.

878 Views

Do a good deed today
Refer a friend to Zigya