1.
Assertion (A): Two physical quantities having the same dimensions may represent different physical concepts. Reason (R): Work and torque have the same dimensions.
2.
Assertion (A): Dimensional analysis cannot determine numerical constants. Reason (R): Dimensionless constants such as π and 2 do not possess dimensions.
3.
A student measured the diameter of a wire using a screw gauge. Which error is most likely to occur if zero correction is not applied?
4.
Which quantity has dimensions [M⁰L⁰T⁰]
5.
Match the Columns: Column–I P. Work Q. Pressure R. Power S. Momentum Column–II 1. [MLT⁻¹] 2. [ML⁻¹T⁻²] 3. [ML²T⁻²] 4. [ML²T⁻³]
6.
The percentage error in density, if mass has 2% error and volume has 3% error, is
7.
Which one of the following quantities has dimensions [LT⁻²]
8.
The SI prefix Mega represents
9.
The SI prefix Micro represents
10.
Which statement about significant figures is correct?
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