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The dimensions of calorie are

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Important Questions on Physical World, Units and Measurement

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Gamma Question Bank for Engineering Physics>Chapter 1 - Physical World, Units and Measurement>Assignment>Q 24
If A and B are two physical quantities having different dimensions. Then which of the following operations might be possible?
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Gamma Question Bank for Engineering Physics>Chapter 1 - Physical World, Units and Measurement>Assignment>Q 25
Precision in measurement depends on
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Gamma Question Bank for Engineering Physics>Chapter 1 - Physical World, Units and Measurement>Assignment>Q 26
In an experiment to measure the diameter of a wire using a screw gauge of resolution 0.001 cm, which of the following may correctly represent the measurement?
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Gamma Question Bank for Engineering Physics>Chapter 1 - Physical World, Units and Measurement>Assignment>Q 27
The breadth of a rectangular sheet is measured as 10.1 cm. The error in the measurement is
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Gamma Question Bank for Engineering Physics>Chapter 1 - Physical World, Units and Measurement>Assignment>Q 28

The length of a rod is measured by four different instruments and the measurements are reported as

A.500.0 mm
B. 50.0 cm
C.0.500 m
D.5.0×10-4 km
We can conclude that

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Gamma Question Bank for Engineering Physics>Chapter 1 - Physical World, Units and Measurement>Assignment>Q 30
The period of oscillation of a simple pendulum in the experiment is recorded as 2.63 s, 2.56 s, 2.42 s, 2.71 s and 2.80 s, respectively. The average absolute error is
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Gamma Question Bank for Engineering Physics>Chapter 1 - Physical World, Units and Measurement>Assignment>Q 31
A measured value 0.00274 expressed in two significant digits is
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Gamma Question Bank for Engineering Physics>Chapter 1 - Physical World, Units and Measurement>Assignment>Q 32
The number of significant figures in the number 0.010780×10-3 are