A piece of the iron nail when kept horizontally on the surface of the sand, rests on it but when kept vertically digs a small hole. Why does this happen?

Due to more pressure

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Due to less pressure

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Due to increased weight

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Due to reduced weight

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Solution

The correct option is A Due to more pressure
When the iron nail is vertical, area of contact is less. Pressure is inversely proportional to area. So, pressure is more when iron nail is vertical. Hence, it digs a small hole in the sand only when placed vertically.

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Q. A force of 10 N acts on an area of 0.1 m². The force is kept the same but the area is reduced to half. Which of the following is true?
(a) The pressure does not change.
(b) The pressure reduces to half.
(c) The pressure increases by 1.5 times.
(d) The pressure doubles.

A piece of iron nail when kept horizontally on the surface of the sand, rests on it but when kept vertically, digs a small hole. Why does this happen?

A piece of the iron nail when kept horizontally on the surface of the sand, rests on it but when kept vertically digs a small hole. Why does this happen?

Q. A piece of the iron nail when kept horizontally on the surface of the sand, rests on it but when kept vertically digs a small hole. Why does this happen?
[1 Mark]

A piece of the iron nail when kept horizontally on the surface of the sand rests on it. Why does it dig into the sand when kept vertically?

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A piece of the iron nail when kept horizontally on the surface of the sand, rests on it but when kept vertically digs a small hole. Why does this happen?

The correct option is A Due to more pressureWhen the iron nail is vertical, area of contact is less. Pressure is inversely proportional to area. So, pressure is more when iron nail is vertical. Hence, it digs a small hole in the sand only when placed vertically.

The correct option is A Due to more pressure
When the iron nail is vertical, area of contact is less. Pressure is inversely proportional to area. So, pressure is more when iron nail is vertical. Hence, it digs a small hole in the sand only when placed vertically.