How can the radiating power of a surface be increased?

एक पंक्ति में उत्तर

The radiating power of a surface can be increased by blackening it.

shaalaa.com

क्या इस प्रश्न या उत्तर में कोई त्रुटि है?

अध्याय 5: Heat and Energy - Transmission of Heat [पृष्ठ २२७]

अध्याय 5 Heat and Energy
Transmission of Heat | Q 21 | पृष्ठ २२७

Who is telling the truth?

The temperature of a substance is measured in joules.

Convert the following temperature into Celsius scale:
113^oF

Give a scientific reason for the following:
In winter the birds fluff up their feathers.

What is the relation between the latitudinal extent and temperature of a region?

Numerical Problems.

An iron ball requires 1000 J of heat to raise its temperature by 20°C. Calculate the heat capacity of the ball.

The temperature and heat are ______ quantities.

Give reasons why –

we wear woolen clothes in winter

Define absolute zero.