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CBSE Class 11-science Answered

The mean diameter of a thin brass rod is to be measured by vernier calipers.A set of 100 measurements of the diameter expected to yield the more reliable estimate than a set of 5 measurements. Which kind of error is getting minimised in that process?
Asked by tps.mjmdr | 08 Jul, 2018, 05:50: PM
answered-by-expert Expert Answer
Personal error is one of the systematic error occurs in measuring physical quantities.
Personal error  arises due to an indivdual's bias or carelessness in taking observations without observing proper precautions. 
 
This kind of personal error will be minimised if we take more number of measurements and take average
Answered by Thiyagarajan K | 13 Jul, 2018, 12:00: PM
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CBSE 11-science - Physics
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CBSE 11-science - Physics
A train starts from a station with a constant acceleration of 4 m/s2. Two seconds later another train passes the same station on the same line and in the same direction with a constant velocity. Find the velocity if the collision is first averted
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CBSE 11-science - Physics
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CBSE 11-science - Physics
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Asked by sheikhsaadat24 | 17 Apr, 2024, 09:41: PM
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CBSE 11-science - Physics
.A SHM is expressed by the equation x = A cos (ωt + φ) and the phase angle φ =0. Draw graphs to show variation of displacement, velocity and acceleration for one complete curve in SHM.
Asked by sy123946 | 07 Apr, 2024, 04:23: PM
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CBSE 11-science - Physics
the dimension of stopping potential vo in photoelectric effect in units of plank's constant 'h',speed of light 'c' and gravitational constant 'G' and ampereA
Asked by derhebha955 | 03 Apr, 2024, 09:03: AM
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CBSE 11-science - Physics
In this que while solving it we take D F of alpha =D.F of beta.Why is it so?
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Asked by sumedhasingh238 | 29 Mar, 2024, 05:15: PM
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CBSE 11-science - Physics
In physics if 2 quantities are dimensionless then their dimensional formula are equal?
Asked by sumedhasingh238 | 28 Mar, 2024, 11:10: PM
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CBSE 11-science - Physics
7. State the relation between maximum range and maximum height of the projectile if the angle of projection is 45 deg
Asked by roshnibudhrani88 | 23 Mar, 2024, 05:52: PM
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CBSE 11-science - Physics
The second overtone of a pipe closed at one end has the same frequency as the third overtone of a pipe open at both ends. Compare the length of the pipes
Asked by emad.amd | 21 Mar, 2024, 12:00: PM
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