In each of the questions given below, there are two statements labelle...
The handles of pressure cookers are made of ebonite because it being a bad conductor of heat, does not heat up.
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In each of the questions given below, there are two statements labelle...
Assertion (A): Pressure cookers are fitted with ebonite handles.
Reason (R): Ebonite is strong.
The correct answer is option 'A', which means that Assertion (A) is true but Reason (R) is false.
Explanation:
Assertion (A): Pressure cookers are fitted with ebonite handles.
Ebonite handles are commonly used in pressure cookers. Ebonite is a type of hard rubber that is resistant to heat and has good insulation properties. This makes it suitable for use in pressure cookers, which operate at high temperatures. The ebonite handles provide a comfortable grip for handling the cooker, even when it is hot, and they also help to prevent heat from transferring to the hands of the user.
Reason (R): Ebonite is strong.
This reason is false. While ebonite does have some degree of strength, it is not primarily chosen for its strength. Ebonite is known for its electrical insulation properties, resistance to heat, and durability. It is a hard material that can withstand high temperatures and does not easily deform or melt. However, it is not as strong as other materials like metal or plastic. In fact, ebonite can become brittle over time and may crack or break if subjected to excessive force or impact.
Therefore, the reason given in (R) is not a correct explanation for the assertion in (A). The primary reason for using ebonite handles in pressure cookers is its resistance to heat and its ability to provide insulation and a comfortable grip, rather than its strength.
In conclusion, pressure cookers are indeed fitted with ebonite handles because ebonite is a suitable material for this purpose due to its heat resistance and insulation properties. However, the reason provided for this assertion being that ebonite is strong is incorrect.