R C Sethi Solutions for Chapter: Physical Quantities and Measurement, Exercise 4: EVALUATE YOUR UNDERSTANDING

$1 {\mathrm{m}}^2$= _____ ${\mathrm{cm}}^2$ ($10000/1000$).

State if the following statements are True or False.Correct the false statement.

The commonly used unit of temperature is Fahrenheit.

The standard unit of time is hour.

Measuring cylinders are used to measure the area occupied by liquids.

Pick the odd one out. Give scientific reason for your answer.

Footstep, scale, cubit, hand span.

Pick the odd one out. Give scientific reason for your answer.

Kilogram, metre, centimetre, kilometre.

Pick the odd one out. Give scientific reason for your answer.

Sand clock, minute, second, hour.

Pick the odd one out. Give scientific reason for your answer.

Area, digital thermometer, laboratory thermometer, clinical thermometer.