Advertisements
Advertisements
प्रश्न
Look at Figure 4.9.
The length of wire PQ in case A is equal to the diameter of the semicircle formed by the wire CDE, in case B. One pin is attached to each wire with the help of wax as shown in Figure 4.9. Which pin will fall first? Explain.
उत्तर
Look at the figure.
The length of wire PQ in case A is equal to the diameter of the semicircle formed by the wire CDE, in case B. One pin is attached to each wire with the help of wax as shown in the figure. Which pin will fall first? Explain.
Solution:
The pin on the wire in case A will fall first as heat will reach it before it reaches the pin in case B (as CDE > PQ). In both cases, heat is transferred to the pins mainly through conduction.
APPEARS IN
संबंधित प्रश्न
The transfer of heat by radiation does not require any medium.
Which color absorb heat radiation and which color reflects heat radiation?
Define radiation.
Mention the applications of radiation in daily life.
Define radiation.
______ is the method of heat transfer that does not require particles to carry the heat energy.
Radiation consists of ______ waves traveling at the speed of light.
Water is used as a coolant in car radiators. Why?
Give some practical applications of radiation.
In winters, when the sun suddenly goes behind the clouds we feel cold, can you say why?
