Assertion : All black coloured objects are considered black bodies.
Reason : Black colour is a good absorber of heat

(A) : All black coloured objects are considered as black bodies. ( R) : Black colour is a poor absorber of heat.

Black colour is a _____ absirber of heat.

Is it necessary that all black coloured objects should be considered black bodies ?

Assertion (A): Black coloured clothes are preferred over white colored clothes in winter Reason (R ): Black is good absorber of radiation

Black colour of Bread Mould is due to

Black colour of Bread Mould is due to

Black colour of Bread Mould is due to

Why does a black board appears black in colour ?