Work, Power and EnergyHard
Question
An ideal heat engine working between temperature T1 and T2 has an efficiency η, the new effciency if both the source and sink temperature are doubled, will be :-
Options
A.η/2
B.η
C.2η
D.3η
Solution
In first case η1 = 
In second case η2 =
= η
In second case η2 =
= ηCreate a free account to view solution
View Solution FreeMore Work, Power and Energy Questions
Choose CORRECT statement(s) regarding the photoelectric effect :-...Two masses of 1 gm an 4 gm are moving with the same kinetic energy. The ratio of their linear momentum will be -...Consider a system of three charges and placed at points A, B and C, respectively, as shown in the figure. Take O to be t...Masses of two substances of 1 g and 9 g respectively. If their kinetic energies are same, then the ratio of their moment...If the water falls from a dam into a trubine wheel 19.6 m below, them the velocity of water at the turiners, is (take g ...