Heat radiations propagate with the speed of

Heat radiation exhibit the phenomenon of polarization which means that the radiation is in the form of -

Assertion : Thermal radiations can propagate in vacuum . Reason : Similar to light wave , thermal radiation is also electroamgnetic wave .

Solar radiation heat up

Define radiation. Give any two examples where heat is transferred by radiation. What is the name of invisible heat rays which transfer heat by radiation ?

In a glass prism ......... light propagates with maximum speed.

Assertion: CO_(2) present in the atmosphere absorbs heat radiated from heat radiated from earth in the form of IR radiations. Reason: CO_(2) is a pollutant.