Home
Class 11
PHYSICS
For which combination of working tempera...

For which combination of working temperatures the efficiency of Carnot's engine is highest.

A

80 K , 60 K

B

100 K , 80 K

C

60 K , 40 K

D

40 K , 20 K

Text Solution

Verified by Experts

The correct Answer is:
d
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • HEAT AND THERMODYNAMICS

    SURA PUBLICATION|Exercise (V II ) Assertion & Reason:|2 Videos

  • HEAT AND THERMODYNAMICS

    SURA PUBLICATION|Exercise (VIII). Choose The Correct or incorrect Statement :|4 Videos

  • HEAT AND THERMODYNAMICS

    SURA PUBLICATION|Exercise (V ) Choose the Correct Pair:|1 Videos

  • GRAVITATION

    SURA PUBLICATION|Exercise VALUE BASED QUESTIONS|4 Videos

  • KINEMATICS

    SURA PUBLICATION|Exercise Creative Question (HOTS)|12 Videos

Similar Questions

Explore conceptually related problems

An efficiency of an engine is always ____

Derive an expression for the efficiency of a heat engine

Knowledge Check

  • An efficiency of an engine is always:

    A
    = 0%
    B
    gt 100%
    C
    lt 100%
    D
    `=100%`

  • What is the value of sink temperature, when efficiency of engine is 100%.

    A
    300 K
    B
    273 K
    C
    0 K
    D
    400 K

  • the temperature co-efficient of resistance for alloys is

    A
    low
    B
    very low
    C
    high
    D
    very high

    • Similar Questions

    Explore conceptually related problems

    Derive the expression for Carnot engine efficieny.

    Derive the expression for Carnot engine efficiency.

    An engine operating between 127"^(@)C and 47"^(@)C takes some specified amount of heat from high temperature reservoir. Calculate the percentage efficiency of an engine.

    What should be the condition for the efficiency of a carnot engine to be equal to 1 ?

    An ideal refrigerator has a freezer at temperature -12^(@)C . The coefficient of perfomance of the engine is 5. the temperature of the air (to which the heat ejected) is

    Home
    Profile