Question

in the room heaters , the reflectors behind the heating coil and polished silver give reason​

Answer 1

Answer:

room heaters have polished reflectors to avoid absorbing heat and to reflect most of heat from its surface

so that heat can not be absorbed by it and therefore it is made to reflect the heat

A polished reflector reflects of the heat. Thus it protects the room heater from absorbing excess heat

Answer 2

Answer:

Heating coils are coiled because when the couls are heated ,a thermal agitation takes and electrons starts moving rapidly now as the coils are coiled the electrons will hit the corners resulting in higher thermal agitations causing the production of large amount of heat