Multiple choice

The scientific principle behind the working of pressure cookers is that the

  1. boiling point depends upon pressure

  2. radiation lowers the temperature

  3. radiation increases the temperature

  4. pressure depends upon the boiling point
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The pressure cooker works by increasing the pressure inside the vessel. This increased pressure raises the boiling point of water, allowing the food to be cooked at a higher temperature than it would be in an open pot.

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