Physics

# In a measurement, random error.

Can be decreased by increasing the number of readings and averaging them

##### SOLUTION
In a measurement, the random error can be minimized by increasing the number of readings and averaging them.

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Single Correct Medium Published on 18th 08, 2020
Questions 244531
Subjects 8
Chapters 125
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#### Realted Questions

Q1 Single Correct Medium
The dimensional formula for $\dfrac{1}{2}\in_0 E^2$ is identical to that of :-
• A. $\dfrac{B^2}{2\mu_0}$
• B. $\dfrac{1}{2} B^2\mu_0$
• C. $\dfrac{\mu_0^2}{2B}$
• D. $\dfrac{1}{2} B\mu_0^2$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q2 Single Correct Medium
A battery of emf $1.4$V and internal resistance $2\Omega$ is connected to a resistance of $100\Omega$ through an ammeter. The resistance of the ammeter is $1.33\Omega$. A voltmeter is connected across the $100\Omega$ resistance. If the current in the circuit is $0.02$A, what is the resistance of voltmeter? If the voltmeter reads $1.1$V, what is the error in the reading?
• A. $200\Omega, -0.23$V
• B. $400\Omega, +0.46$V
• C. $600\Omega, -0.69$V
• D. $800\Omega, +0.92$V

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q3 Subjective Medium
If X=a+b, the maximum percentage error in the measurement of X will be

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q4 Single Correct Medium
• A. $\displaystyle \left [ M^{0}L^{0}T^{-1} \right ]$
• B. $\displaystyle \left [ ML^{-1}T^{-1} \right ]$
• C. $\displaystyle \left [ M^{0}LT^{-1} \right ]$
• D. $\displaystyle \left [ ML^{0}L^{-1} \right ]$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q5 Single Correct Medium
The dimensions of pressure are
• A. $MLT^{-2}$
• B. $ML^{-2}T^{2}$
• C. $ML^{-1}T^{-2}$
• D. $MLT^{2}$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020