Advertisements
Advertisements
प्रश्न
What is the velocity of thermal radiations?
एक पंक्ति में उत्तर
Advertisements
उत्तर
The velocity of thermal radiations is equal to the speed of light i.e. 3 x 108 m/s.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Iron rims are heated before they are fixed on the wooden wheels.
An iron washer is heated. State the effect on its external.
An iron washer is heated. State the effect on its internal diameter.
Give scientific reason.
The telephone wires which sag in summer become straight in winter.
Equal volumes of alcohol and mercury are heated uniformly in identical containers separately from 10°C to 50°C. Will both the liquids occupy the same volume? Give reason.
State three advantages of using mercury in a thermometer liquid.
Thermal expansion is always a nuisance.
- Assertion: Gas is highly compressible than solid and liquid
- Reason: Interatomic or intermolecular distance in the gas is comparably high.
Analogy:
Expansion is length:: Linear expansion.
Expansion in volume:: ______.
Analogy:
Ordinary glass:: Glass tumbler.
Pyrex glass:: ______.
