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These questions consists of two statemen...

These questions consists of two statements each printed as Assertion and Reason. While answering these question you are required to choose any one of the following four responses
Assertion A string has a mass m. If it is accelerated, tension is non-uniform and if it is not accelerated, tension is uniform.
Reason Tension force is an electromagnetic force.

A

If both Assertion and reason are true and the reason is a correct explanation of the assertion.

B

If both Assertion and reason are true and the reason is not the correct explanation of the assertion.

C

if assertion is true but reason is false

D

if assertion is false but reason is true

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to analyze both the assertion and the reason provided in the question. ### Step 1: Analyze the Assertion The assertion states: "A string has a mass m. If it is accelerated, tension is non-uniform and if it is not accelerated, tension is uniform." 1. **When the string is accelerated**: - Consider a small element of the string. If the string is accelerating, the tension at one end of the element (T1) will differ from the tension at the other end (T2) due to the net force acting on the element. Thus, T1 ≠ T2, which means the tension is non-uniform. 2. **When the string is not accelerated**: - If the string is hanging and not accelerating, the tension throughout the string is uniform. However, if we consider a small segment of the string, the tension at the bottom will be greater than the tension at the top due to the weight of the string below that segment. Therefore, even in a non-accelerated state, the tension is not uniform. **Conclusion**: The assertion is false. ### Step 2: Analyze the Reason The reason states: "Tension force is an electromagnetic force." - Tension in a string arises from the molecular forces between the particles of the string, which can be attributed to electromagnetic interactions. However, tension itself is not categorized strictly as an electromagnetic force. It is a result of the forces acting on the mass of the string. **Conclusion**: The reason is misleading as it oversimplifies the nature of tension. It is not entirely accurate to say that tension is an electromagnetic force. ### Final Conclusion - The assertion is false because tension is not uniform in both accelerated and non-accelerated conditions. - The reason is also misleading and not entirely true. ### Answer Selection Based on the analysis: - The correct option is that the assertion is false, and the reason is also false.
To solve the problem, we need to analyze both the assertion and the reason provided in the question. ### Step 1: Analyze the Assertion The assertion states: "A string has a mass m. If it is accelerated, tension is non-uniform and if it is not accelerated, tension is uniform." 1. **When the string is accelerated**: - Consider a small element of the string. If the string is accelerating, the tension at one end of the element (T1) will differ from the tension at the other end (T2) due to the net force acting on the element. Thus, T1 ≠ T2, which means the tension is non-uniform. ...
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