Advertisements
Advertisements
प्रश्न
A body radiates out 300 calories of heat energy. How much heat energy is radiated out by the body in joules?
Advertisements
उत्तर
Heat energy radiated by the body = Q = 300 Cal
As 1 cal = 4.2 J
Q = 300 Cal = 300 × 4.2 J
Q = 1260 J
APPEARS IN
संबंधित प्रश्न
Write S.I. unit of temperature.
Draw a diagram showing the temperature of various layers of water in an ice covered pond.
Name or state the following:
The law which states that pressure remaining constant the volume of a given mass of dry gas is directly proportional to its absolute [Kelvin] temperature.
What is a bimetallic strip?
A copper wire 10 cm long is heated from 200C to 300C. Find the increase in length of the wire, if coefficient of linear expansion of copper is 1.7 X 10-5oC-1
State the advantages and disadvantages of mercury and alcohol as thermometric liquids.
Explain the following:
Conduction is not possible in vacuum.
Assertion (A): 0 °C = 273.16 K. For our convenience we take it as 273 K after rounding off the decimal.
Reason (R): To convert a temperature on the Celsius scale we have to add 273 to the given temperature.
Mention the three units which are used to measure the temperature.
