Question

Column I gives some devices and Column II gives some process on which the functioning of these devices depend.
Match the devices in Column I with the processes in Column II and indicate your answer by darkening appropriate
bubbles in the 4 4 matrix given in the ORS.

Answer 1

Bimetallic strip is based on thermal expansion of materials,.
In steam engine, internal energy of fuel (say coal) is converted into mechanical work.
In incandescent lamp and fuse also energy is converted from electrical to heat.
Fuse is based on melting of fuse wire if suddenly current increases.