1.
In the arrangement shown in the figure, pins A, B, C, and D are fixed to a
circular metal loop with the help of wax.
Insulator
Metal loop
Pins
Candle
The circular metal loop is heated at the point A with the help of a candle flame.
In which order would the pins fall if AB <AD? Justify your answer. -
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Given:
In the arrangement shown in the figure, pins A, B, C, and D are fixed to a circular metal loop with the help of wax. The circular metal loop is heated at the point A with the help of a candle flame.
To find:
Order in which the pins will fall
Concept:
The metallic ring is a good conductor of heat. So , when heat is applied at a point, heat gets transmitted to all parts of the metallic ring.
Due to the heat, the wax melts resulting in falling off the pins.
Since AB < AD , heat will reach point B much earlier as compared to point D. And it will reach point C at last.
So , wax will be first be melted at point B , then D and finally at C.
Hence falling of pins will follow the order :
The pins AB will fall faster than AD.
Because the metal as y'all know, is a good conductor of heat. So the the heat will transfer to the whole loop. Now, because the pin B is closer to pin A than D, so it will fall faster then the pin D.
Hope you understand