General Physics Questions And Answers, Set 42

 

General Physics Questions And Answers


Q1. 
When the area decreases _____

Ans.
pressure increases


Q2. 
The SI unit of pressure is _____

Ans.
Pascal


Q3. 
Quantitatively heat conduction can be described as?

Ans.
Time rate of heat flow for a given temperature difference


Q4. 
Melting point depends on pressure. True or False?

Ans.
True


Q5. 
Condensation temperature is the same as evaporation temperature. True or False?

Ans.
True


Q6. 
If we supply equal amounts of heat to equal masses of two different substances, the rise in temperature will be the same for both. True or False?

Ans.
False


Q7. 
What is the relation between coefficient of area expansion(A) and coefficient of volume expansion(B)?

Ans.
B = 1.5A


Q8. 
For a constant volume gas thermometer select the correct statement.

Ans.
We actually measure the pressure at constant volume and the scale is calibrated to give the temperature reading


Q9. 
An aluminium piece and a wooden piece have been left in a room for a few hours. When you go and touch them the aluminium seems colder than wood. Select the correct option. Assume room temperature to be 25°.

Ans.
Both have the same temperature equal to 25°


Q10. 
What is a quasi-static process?

Ans.
In equilibrium at every state


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