A good reflector absorbs lots of radiant energy.

White or shining bodies are good reflectors of radiant energy

The absorption of radiant energy causes

The absorption of radiant energy causes

Good reflector of sound:

A body is kept inside a container the temperature of the body is T_(1) and the temperature of the container is T_(2) the rate at which body absorbs the energy is alpha The emissivity of the body is e The radiation striking the body is either absorbed or reflected At what rate of body will absorb the radiant energy .

Assertion : All bodies emit radiant energy whether they are solid, liquid or gases. Reason : Black bodies absorb and emit radiant energy better than bodies of lighter colours.

In which form do green plants store the radiant energy of the sun that they capture ?

These question consists of two statements each printed as Assertion and Reason. While answering these question you are required to choose any one of the following five responses. Assertion: If a body is good absorber of green light then it will be good reflector or red light. Reason: At a given temperature, the ratio of emissive power to absorptive power is same for all substances.

In an endothermic reaction energy absorbed is more than the energy released.

Two metal spheres have radii rand 2r and they emit thermal radiation with maximum intensities at wavelengths lambda and 2lambda . respectively. The respective ratio of the radiant energy emitted by them per second will be