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Subjects
Science State Board
Class 9
Measurement
Physical quantities, units and measuring istruments
2.
Exercise on basics of measurement
Exercise condition:
5
m.
Choose the best answer:
1.
Steradian is measured by
Liquid angle
Solid angle
Volume
2.
Ammeter is used to measure
Power
Voltage
Electrical current
3.
Electronic oscillation is used by which object.
Sand clock
Quartz clock
Digital clock
4.
Closeness of two or more measured values is called as
Exact value
Proper value
Precision
5.
The closeness of the measured value to the true value is
Precision
None of these
Accuracy
Approximation
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