Question

sun is a hot source of light whereas LED's are cold source of light. Give reason ​

Answer 1

Explanation:

Fluorescent lamps are not exactly hot, but they are not cold either. T12 (1.5″ dia.) lamps are not much warmer than room temperature, but T8 (1″ dia.)lamps are warmer and T5 (5/8″ dia.) are pretty warm - up to 60 degrees C.

LEDs emit light with no infra-red (heat) component, so you can define it as “coll light”, but their “backside” gets hot enough to require heat sinks.

Answer 2

Answer:

Artificial source of light is the man made light source which requires energy to be supplied.e.g bulb whereas sun is a star.Which is an example of natural source of light.