Physics

The mathematical operation in which the accuracy is limited to least accurate term is :

both A and B

SOLUTION
In addition or subtraction we can reduce the terms to least accurate term and add or subtract them. By this process in addition or subtraction answer is not much get affected or change in answer is negligible.
But if we apply this process in multiplication and division, change in answer is considerable.
Hence in addition and subtraction accuracy is limited to least accurate term.

You're just one step away

Single Correct Medium Published on 18th 08, 2020
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 201

Realted Questions

Q1 Single Correct Medium
A watch shows time as 3:25 when seen through a mirror , time appeared will be then
• A. 8 : 35
• B. 9 : 35
• C. 7 : 35
• D. 8 : 25

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q2 Single Correct Medium
Study the following.
 List - I List - II a) Same negative dimensions of mass I) Pressure, Rydberg constant b) Same negative dimensions of length II) Mangnetic induction field, Potential c) Same dimensions III) Capacity, Universal gravitational constant d) Same dimension of current IV) Energy density, Surface tension
• A. a-III, b-I, c-IV, d-II
• B. a-III, b-IV, c-I, d-II
• C. a-I, b-II, c-III, d-IV
• D. a-II, b-I, c-IV, d-III

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q3 Single Correct Medium
Dimensional formula for capacitance is:
• A. ${ M }^{ -1 }{ L }^{ -2 }{ T }^{ 4 }{ I }^{ 2 }$
• B. ${ M }^{ 1 }{ L }^{ 2 }{ T }^{ 4 }{ I }^{ -2 }$
• C. ${ M }^{ 1 }{ L }^{ 2 }{ T }^{ 2 }$
• D. ${ MLT }^{ -1 }$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q4 Single Correct Medium
Calculate focal length of a spherical mirror from the following observations.
Object distance, $\displaystyle u=\left ( 50.1\pm 0.5 \right )$cm and image distance, $\displaystyle v=\left ( 20.1\pm 0.2 \right )$ cm.
• A. $\displaystyle f=\left ( 14.3\pm 0.2 \right )$ mm
• B. $\displaystyle f=\left ( 14.3\pm 0.2 \right )$ cm
• C. $\displaystyle f=\left ( 14.3\pm 0.4 \right )$ cm
• D. None of these

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q5 Single Correct Medium
If the random error in the arithmetic mean of 50 observation is $\alpha$, then the random error in the arithmetic mean of 150 observations would be
• A. $\alpha$
• B. $3\alpha$
• C. $\dfrac { \alpha }{ 3 }$
• D. $2\alpha$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020