Question

the arrangements A and B shown in Figure 4.7, pins P and Q are fixed to a metal loop

and an iron rod with the help of wax. In which case are both the pins likely to fall at

different times? Explain.

​

Answer 1

Answer:

Both the pin fall at different time because you might know that heat always travel with same speed and in the arrangement A there is wax in a circular type but in the arrangement B the wax is straight .so,arrangement B take less time as compared to arrangement A.

Answer 2

The explanation is as follows ;

• As we know that heat moves at a constant speed in the same material and the path followed by heat is the same.
• In the arrangement (A), both the pins are likely to fall at the same time because as we can see it contains a circular path, and both pins P and Q are fixed at half a way from both sides of the heat path. So, arrangement (A) is not an arrangement in which both the pins are likely to fall at different times.
• In the arrangement (B), both pins are likely to fall at different times because as we can see it contains a straight path in which P is nearer to the heat source than pin Q. Heat first reaches to the pin P, and then it reaches to the pin Q. Hence, this results in the first fall of the pin P and then fall of pin Q takes place. So, arrangement (B) is an arrangement in which both the pins are likely to fall at different times.

#SPJ3