Multiple Choice QuestionsIf E and B represent electric and magnetic field vectors of an electromagentic wave, the direction of propagation of the wave is along
E × B
B × E
E
B
Out of the following statements which is not true ?
Infrared radiations arise due to minor electron transitions in atoms
Infrared radiations are used for long distance photography
Sun is the natural source of infrared radiation
Infrared radiations are detected by using a bolometer
