JAMB - Physics (2015 - No. 13)
In which of the following device is the expansion of solid not required?
I. Simple pendulum
II. Fire alarms
III. Thermostat
IV. Bimetallic thermometer
I. Simple pendulum
II. Fire alarms
III. Thermostat
IV. Bimetallic thermometer
III only
II & III only
I only
II, III & IV only
Explication
Simple pendulum does not depend on thermal expansion
Five alarms, Thermostat and Bimetallic thermometer are application of thermal expansion of solid
Five alarms, Thermostat and Bimetallic thermometer are application of thermal expansion of solid