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EasyPhysicsUnits and Measurements

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Choose the correct statement.

Dimensionless quantities can have a unit

A dimensionally correct equation must be correct

Change in system of unit will surely change the numerical value of physical quantity

Dimension of a physical quantity can never be a fraction

If velocity (V), mass (M) and time (T) are taken as fundamental quantities, then

Time period of a simple pendulum is recorded in three experiments as 1.9, 2.0 an

More from Units and Measurements

Energy of a particle is 5 J. If unit of length and time are doubled and unit of mass is halved then

The time period of oscillation of a body is given by , K represents the kinetic energy, m mass, g ac

A gas bubble, from an explosion under water, oscillates with a period proportional to PadbEc. Where

If P and Q have different non-zero dimensions, which of the following operation is possible?

A wave is represented by y = a sin(At − Bx + C) where A, B, C are constants and t is in seconds and

If the unit of length and force be increased four times, then the unit of energy is

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