Advertisements
Advertisements
प्रश्न
A circular metal loop is heated at point O as shown in Figure 4.6.
(i) In which direction would heat flow in the loop?
(ii) In which order are the pins at points P, Q and R fixed with the help of wax fall if points O, P, Q and R are equidistant from each other?
उत्तर
(i) The heat will flow in both directions i.e. from O to P and O to R.
(ii) At first the pins at R and P will fall simultaneously followed by the pin at Q.
APPEARS IN
संबंधित प्रश्न
Name the mode of transfer of heat in the following :
(a) solid,
(b) liquid,
(c) gas
(d) vacuum
What will absorb heat?
Soil
Complete the following sentence:
CGS units of heat is _________
If you apply some heat energy to a substance, which of the following can take place in it?
______ is a form of energy.
The sun gives us light and heat.
Analogy:
Movement of molecules:: Heat.
Heat energy:: ______.
How can heat energy be generated?
Observe the picture given in Figure 4.8. Water is being boiled in a pan of wide base.
- Which position P or T will feel warmer?
- Fill up the boxes P and T to indicate the mode of flow of heat to the hand.
You would have noticed some space being left on railway tracks. Why?
