English
Karnataka Board PUCPUC Science Class 11

Is the bulb of a thermometer made of diathermic or adiabatic wall?

Advertisements
Advertisements

Question

Is the bulb of a thermometer made of diathermic or adiabatic wall?

Short/Brief Note
Advertisements

Solution

As diathermic walls allow the exchange of heat energy between two systems and adiabatic walls do not, hence. diathermic walls are used to make the bulb of a thermometer.

shaalaa.com
  Is there an error in this question or solution?
Chapter 11: Thermal Properties of Matter - Exercises [Page 80]

APPEARS IN

NCERT Exemplar Physics Exemplar [English] Class 11
Chapter 11 Thermal Properties of Matter
Exercises | Q 11.13 | Page 80

RELATED QUESTIONS

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


A body cools down from 65°C to 60°C in minutes. It will cool down from 60°C to 55°C in


Answer the following question.

State Newton’s law of cooling and explain how it can be experimentally verified.


A metal sphere cools from 80 °C to 60 °C in 6 min. How much time with it take to cool from 60 °C to 40 °C if the room temperature is 30 °C?


A bucket full of hot water cools from 85 °C to 80 °C in time T1, from 80 °C to 75 °C in time T2 and from 75 °C to 70 °C in time T3, then ______.


A liquid with a certain surface area takes 10 minutes to cool from 80° C to 70° C. The time taken by it to cool from 80° C to 60° C is [The surrounding temperature being 40° C] ____________.


A tub of hot water cools from 80°C to 75°C in time t1 from 75°C to 70°C in time t2, and from 70°C to 65°C in time t3 then:


Two circular discs A and B with equal radii are blackened. They are heated to the same temperature and are cooled under identical conditions. What inference do you draw from their cooling curves?


A cup of coffee cools from 90°C to 80°C in t minutes, when the room temperature is 20°C. The time taken for a similar cup of coffee to cool from 80°C to 60°C at a room temperature same at 20°C is ______


A cup of coffee cools from 90°C to 80°C in t minutes, when the room temperature is 20°C. The time taken by a similar cup of coffee to cool from 80°C to 60°C at a room  temperature same at 20°C is ______.


A glass full of hot milk is poured on the table. It begins to cool gradually. Which of the following is correct?

  1. The rate of cooling is constant till milk attains the temperature of the surrounding.
  2. The temperature of milk falls off exponentially with time.
  3. While cooling, there is a flow of heat from milk to the surrounding as well as from surrounding to the milk but the net flow of heat is from milk to the surounding and that is why it cools.
  4. All three phenomenon, conduction, convection and radiation are responsible for the loss of heat from milk to the surroundings.

According to Newton's law of cooling, the rate of cooling of the body is proportional to (Δθ), where Δθ is the difference between the temperature of the body and the surroundings, and n is equal to ______.


In 5 minutes, a body cools from 75°C to 65°C at a room temperature of 25°C. The temperature of the body at the end of the next 5 minutes is ______°C.


According to Newton's law of cooling, how does the rate of cooling depend on temperature?


If we plot \[\frac{dT}{dt}\] vs (T−T₀), what graph do we get?


Why must the surrounding temperature T₀ remain constant in the experiment?


A body is cooling from 80°C to 60°C in a room at 30°C. Compared to the time taken to cool from 60°C to 40°C, the time taken to cool from 80°C to 60°C will be ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×