Physics

# Mean value $-$ Measured value $=$

Absolute error

##### SOLUTION
$\mid$ Mean  Value  -  Measured  Value $\mid =$ Absolute  error  in  measurement

Relative  error  =  $\dfrac{\text {Absolute error}}{\text{Mean value}}$

Random  errors  are errors  in  measurement  that  lead  to  measurable values being  inconsistent when repeated measures  of  a  constant attribute  or quantity are taken.

Gross error  =  Sum of all errors.

You're just one step away

Single Correct Medium Published on 18th 08, 2020
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 202

#### Realted Questions

Q1 Single Correct Medium
A physical quantity $x$ is calculated from the relation $x={ a }^{ 3 }{ b }^{ 2 }/\sqrt { cd }$. Calculate percentage error in $x$, if $a,b,c$ and $d$ are measured respectively with an error of $1\%$, $3\%$, $4\%$ and $2\%$.
• A. $12\%$.
• B. $22\%$.
• C. $2\%$.
• D. $0.2\%$.

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q2 Single Correct Medium
If universal gravitational constant (G), speed of light (c), and time (t) are base units then the dimensional formula of mass can be represented as?
• A. $[G^1c^3t^1]$
• B. $[G^{-1}c^3t^1]$
• C. $[G^{-1}c^{-2}t^{-1}]$
• D. $[G^1c^{-3}t^{-1}]$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q3 Single Correct Medium
Given that v is the speed,r is radius and g is acceleration due to gravity. Which of the following is dimension less
• A. $\frac { v ^ { 2 } g } { r }$
• B. $v ^ { 2 } r g$
• C. $\mathrm { vr } ^ { 2 } \mathrm { g }$
• D. $\frac { v ^ { 2 } } { r g }$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q4 Single Correct Medium
A wire length of $l= 6\pm 0.06\ cm$ and radius $r= 0.5\pm 0.005\ cm$ and mass $m= 0.3\pm 0.003\ g$ Maximum percentage error is density is:
• A. $4\%$
• B. $2\%$
• C. $1\%$
• D. $6.8\%$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q5 Passage Hard
These questions consist of two statement, each printed as assertion and reason. While answering these question you are required to cheese any one of the following five responses.

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020