Question
What is meant by Convection?
✓
Answer
Convection is the process in which heat transfer is by actual movement of molecules in fluids such as liquids and gases. In convection, molecules move freely from one place to another.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Explain force displacement graph for a spring.
Estimate the average energy of a helium atom at
(i) room temperature $\left(27^{\circ} C \right)$
(ii) the temperature on the surface of the sun $(6000 K )$ and
(iii) the temperature of $10^7 K \cdot\left( k _{ B }=1.38 \times 10^{-23} JK ^{-1}\right)$
→(i) room temperature $\left(27^{\circ} C \right)$
(ii) the temperature on the surface of the sun $(6000 K )$ and
(iii) the temperature of $10^7 K \cdot\left( k _{ B }=1.38 \times 10^{-23} JK ^{-1}\right)$
What is the angular velocity of the hour hand of a clock?
What is the value of instantaneous speed of the point of contact during pure rolling ?
What is the source of centripetal acceleration for earth to go round the sun?
A spring of force constant K is cut into two equal pieces. Calculate force constant of each part.
Suggest a suitable physical situation for the following graph.
Why the speed of whirl wind in a Tornado is alarmingly high?
Distinguish between the terms gravitation and gravity.
The fundamental frequency in an open organ pipe is equal to the 3rd harmonic of a closed organ pipe. If the length of the closed organ pipe is 20 cm. What is the length of the open organ pipe.