Question

2) Several nails were attached to a metallic rod, through its length by using drops of waxas
adhesive. This rod was placed horizontally with one end subjected to the flame of a burner a
depicted, below
Nails closer to point Y begin to fall if the burner is removed after a short while nails closer to point
1 remained affined
Which end of the rod is hotter, and why
(a) X is hotter as the war and nails both remained stuck to the rod
[b]X is hotter because heat moved from Y and was transferred to X
(c) Y is hotter as die wax melted quicker due to the heat of the mod
Td Yis hotter as the gravity acted faster near Y, dropping the mails​

Answer 1

Answer:

c

Explanation:

Y is hotter as die wax melted quicker due to the heat of the mod

Td Yis hotter as the gravity acted faster near Y, dropping the nails​.

 

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Answer 2

Y end of the rod is hotter as the wax melted quicker due to the heat of the rod. [option (c)]

• Metals are good conductors of heat. When the given metallic rod was subjected to the flame of a burner, it got heated up quickly.
• The Y end of the rod, where the flame was directly placed, will receive heat earlier than end X.
• This happens because heat will only get conducted from Y to X once a concentration gradient is created between them.
• So, when the burner (the source of heat) is removed, end Y is hotter. Thus, the nails attached to that end will start falling off as the wax melts.

Hence, we can conclude that end Y is hotter as the wax melted quicker due to the heat of the rod.