Home
Class 11
PHYSICS
In hot summer after a both the body ...

In hot summer after a both the body 's

A

internal energy decreases

B

internal energy increases

C

heat decreases

D

no change in internal energy and heat

Text Solution

Verified by Experts

The correct Answer is:
A

internal energy decreases
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • HEAT AND THERMODYNAMICS

    FULL MARKS|Exercise TEXTUAL EVALUATION SOLVED (II. Short Answer Questions)|48 Videos
  • HEAT AND THERMODYNAMICS

    FULL MARKS|Exercise TEXTUAL EVALUATION SOLVED (III. Long Answer Questions)|24 Videos
  • HEAT AND THERMODYNAMICS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED (Numerical Problems)|16 Videos
  • GRAVITATION

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED (Numerical Problems)|18 Videos
  • KINEMATICS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED (LONG ANSWER QUESTIONS)|10 Videos

Similar Questions

Explore conceptually related problems

The length of a brass rod is found to be smaller on a hot summer day that on a cold winter day as measured by the same aluminium scale. Do we conclude that brass shrinks on heating.

Two bodies of different masses are allowed to fall freely from the same height , then both the bodies reach the Earth together .

Knowledge Check

  • In hot summer after a bath, the body's

    A
    internal energy decreases
    B
    internal energy increases
    C
    heat decreases
    D
    no change in internal energy and heat
  • In hot summer aft er a bath, the body’s

    A
    internal energy decreases
    B
    internal energy increases
    C
    heat decreases
    D
    no change in internal energy and heat
  • According to the principle of mixtures , heat lost by a hot body is equual to :

    A
    Heat gained by the surroundings
    B
    Heat transferred to the surroundings
    C
    Heat gained by the body
    D
    None of the above
  • Similar Questions

    Explore conceptually related problems

    Eiffel tower is made of iron and its height is roughly 300m. During winter season (January ) in France, the temperature is 2^(@)C and in hot summer its average temperature is 25^(@)C , calculate the change in height of Eiffel tower between summer and winter.The linear thermal expansion co-efficient for iron is 10xx10^(-6)"//" ""^@C .

    On a hot summer day we want to cool our room by opening the refrigerator door annd closing all the windows and doors. Will the process work ?

    A body at a temperature of 50^0F is placed outdoors where the temperature is 100^0F . If the rate of change of the temperature of a body is proportional to the temperature difference between the body and its surrounding medium. If after 5 min the temperature of the body is 60^0F , find (a) how long it will take the body to reach a temperature of 75 ^0 F and (b) the temperature of the body after 20 min.

    A hot body placed in a surrounding of temperature theta_(0) obeys Newton's law of cooling (d theta)/(dt)=-k(theta-theta_(0)) . Its temperature at t=0 is theta_(1) the specific heat capacity of the body is s and its mass is m . Find (a) the maximum heat that the body can lose and (b) the time starting from t=0 in which it will lose 90% of this maximum heat.

    A body is moving with velocity 30m//s towards east .After 10 seconds its velocity becomes 40m//s towards north .The average acceleration of the body is