MHT CET questions
29293 published questions with worked solutions.
- An ideal gas has pressure p, volume V and absolute temperature T. If m is the mass of each molecule and K is the Boltzmann...
- Assuming the expression for the pressure exerted by the gas on the walls of the container, it can be shown that pressure is...
- A black rectangular surface of area A emits energy E per second at 27^ C . If length and breadth are reduced to ( 1 3 )rd of...
- A black body radiates heat at temperatures T_1 and T_2 (T_2 > T_1). The frequency corresponding to maximum energy is [MHTCET 2015]
- Gases exert pressure on the walls of the container, because the gas molecules [MHTCET 2014]
- A gas is compressed isothermally. The rms velocity of its molecules [MHTCET 2014]
- A piece of iron is heated in a flame. If first becomes dull red, then becomes reddish yellow and finally turns to white hot. The...
- A black body at a temperature of 227^ C radiates heat energy at the rate 5 cal/cm^2 - s . At a temperature of 727^ C , the rate...
- A vessel is filled with an ideal gas at a pressure of 10 atm and temperature 27^ C . Half of the mass is removed from the vessel...
- KE per unit volume is E. The pressure exerted by the gas is given by [MHTCET 2010]
- The velocity of 4 gas molecules are given by 1 km/s , 3 km ,s^ -1 , 5 km ,s^ -1 and 7 km ,s^ -1 , Calculate the difference...
- The sphere of radii 8 cm and 2 cm are cooling. Their temperatures are 127^ C and 527^ C , respectively. Find the ratio of energy...
- At what temperature, rms speed of air molecules is doubled of that at NTP? [MHTCET 2009]
- To what temperature should the hydrogen at 327^ C be cooled at constant pressure, so that the root mean square velocity of its...
- If 150 J of energy is incident on area 2 m^2 . If Q_r = 15 J , coefficient of absorption is 0.6, then amount of energy...
- The unit of Wien's constant b is [MHTCET 2009]
- The gases carbon monoxide (CO) and nitrogen (N) at the same temperature have kinetic energies E_1 and E_2, respectively. Then,...
- The temperature at which the rms velocity of hydrogen is four times of its value at NTP, is [MHTCET 2005]
- In terms of mechanical unit, C_p - C_v = _ _ _ _ _, where C_p and C_v are principal specific heats. [MHTCET 2018]
- A black body is heated from 27^ C to 927^ C . The ratio of radiation emitted will be [MHTCET 2019]