Advertisements
Advertisements
प्रश्न
In hot summer after a bath, the body’s __________.
विकल्प
internal energy decreases
internal energy increases
heat decreases
no change in internal energy and heat
Advertisements
उत्तर
In hot summer after a bath, the body’s internal energy decreases.
APPEARS IN
संबंधित प्रश्न
Define emissive power and coefficient of emmision of a body.
The light from the Sun is found to have a maximum intensity near the wavelength of 470 nm. Assuming the surface of the Sun as a black body, the temperature of the Sun is _____________.
[Wien's constant b = 2 .898 x l0- 3mK]
A body cools from 80° C to 70° C in 5 minutes and to 62° C in the next 5 minutes. Calculate the temperature of the surroundings.
Can the bulb of a thermometer be made of an adiabatic wall?
Should a thermometer bulb have large heat capacity or small heat capacity?
The mechanical equivalent of heat ____________ .
The temperature of an object is observed to rise in a period. In this period
(a) heat is certainly supplied to it
(b) heat is certainly not supplied to it
(c) heat may have been supplied to it
(d) work may have been done on it
The densities of wood and benzene at 0°C are 880 kg m3 and 900 kg m–3 , respectively. The coefficients of volume expansion are 1.2 × 10–3 °C–1 for wood and 1.5 × 10–3 °C–1for benzene. At what temperature will a piece of wood just sink in benzene?
Two tumblers of A and B have water at 50°C temperature. If the water from A and B is poured into tumbler C. The temperature of C is ______.
The concept of thermal equilibrium, where heat flows between bodies until they reach the same temperature, is the basis of which law of thermodynamics?
