Random errors can be reduced by_______________?
Correct answer: C. Taking mean of several measurements
- A. Taking zero correction
- B. Comparing the instrument with another more accurate one
- C. Taking mean of several measurements
- D. All methods explained in A, B and C
Explanation
Random errors vary unpredictably from one reading to another, so averaging several readings tends to cancel positive and negative deviations. Zero correction and comparison with a better instrument address systematic error, so students may incorrectly choose d by treating all error-reduction methods as equivalent.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Displacement and Velocity
Displacement is the directed change in position, while velocity is the rate of change of displacement and includes both magnitude and direction. The topic connects position-time and velocity-time graphs with average and instantaneous values, and distinguishes displacement from distance and velocity from speed.
Practise Force and Motion
1,416 free Force and Motion MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Displacement and Velocity questions
In any measurement the significant figures are______________?
A digit zero in a measurement__________________?
Number of significant figures in 0.0173 is_________________?
The uncertainty in a measurement may occur due to_______________?
The error in measurement may occur due to_________________?
Prefix deca represents_______________?