The design of the thermostat of an electric iron is based on the?

A. emission of electrons from metals when heated
B. increase in size of metals when heated
C. increase in the density of metals when heated
D. change in the mass of metals when heated

Correct Answer: Option B

B. increase in size of metals when heated

Sunday

Next A metal rod of length 50cm is heated from 40oC to 80oC. If the linear expansivity of the material is α, calculate the increase in length of the rod (in metres) in terms of α. »

Previous « An object of mass 0.25kg moves at a height h above the ground with a speed of 4ms-1, if its mechanical energy at this height is 12 J, determine the value of h. [g = 10ms-1]

Published by

Sunday

Tags: physics

6 years ago

ETM 312 Theory Questions: Land Law and the Consequences of Unauthorized Land Transfers in Nigeria

300 Level Estate Management and Valuation Department exam questions and detailed answers. Download the answers…

5 months ago

Theory Question