Paheli had bought a new bottle of pickles from the market. She tried to open the metal cap to taste it but could not do so. She then took a bowl of hot water and immersed the upper end of the bottle in it for five minutes. She could easily open the bottle now. Can you give the reason for this?

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Solution

When a metal object is heated, it increases in size and when the hot metal object is cooled, it decreases in size and comes back to its original size.

Therefore, on immersing the pickle bottle in hot water, the metal cap expands in size hence it can be removed easily.

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Paheli had bought a new bottle of pickles from the market. She tried to open the metal cap to taste it but could not do so. She then took a bowl of hot water and immersed the upper end of the bottle in it for five minutes. She could easily open the bottle now. Can you give the reason for this?​

When a metal object is heated, it increases in size and when the hot metal object is cooled, it decreases in size and comes back to its original size. ​ Therefore, on immersing the pickle bottle in hot water, the metal cap expands in size hence it can be removed easily.​

Paheli had bought a new bottle of pickles from the market. She tried to open the metal cap to taste it but could not do so. She then took a bowl of hot water and immersed the upper end of the bottle in it for five minutes. She could easily open the bottle now. Can you give the reason for this?

When a metal object is heated, it increases in size and when the hot metal object is cooled, it decreases in size and comes back to its original size.

Therefore, on immersing the pickle bottle in hot water, the metal cap expands in size hence it can be removed easily.