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In each of the questions given below, there are two statements labelled as Assertion (A) and Reason (R).
Assertion (A): Telephone wires sag more in summer.
Reason (R): They expand due to summer heat.
  • a)
    A is true but R is false.
  • b)
    A is false but R is true.
  • c)
    Both A and R are false.
  • d)
    Both A and R are true and R is the correct explanation of A.
  • e)
    Both A and R are true but R is not the correct explanation of A.
Correct answer is option 'E'. Can you explain this answer?
Most Upvoted Answer
In each of the questions given below, there are two statements labelle...
Assertion (A): Telephone wires sag more in summer.
- This statement is true.
- During summer, the temperature increases, causing materials, including metal wires, to expand.
- As a result, the telephone wires sag more than they do in colder temperatures.
Reason (R): They expand due to summer heat.
- This statement is also true.
- When exposed to heat, metals expand due to increased kinetic energy among their atoms, which results in elongation and sagging of the wires.
Relationship Between A and R
- While both the assertion and reason are true, the reason does not provide a complete explanation for the assertion.
- The sagging of telephone wires in summer is not solely due to expansion. Other factors, such as the weight of the wires and the tension they are under, also play significant roles.
Conclusion
- Therefore, the correct answer is option 'E': Both A and R are true, but R is not the correct explanation of A.
- This distinction is crucial in understanding the relationship between the two statements, as it highlights the complexity of physical phenomena like thermal expansion and its effects on materials.
Free Test
Community Answer
In each of the questions given below, there are two statements labelle...
The metal of telephone wires expands in summer and the wires become loose. So, they sag.
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In each of the questions given below, there are two statements labelled as Assertion (A) and Reason (R).Assertion (A): Telephone wires sag more in summer.Reason (R): They expand due to summer heat.a)A is true but R is false.b)A is false but R is true.c)Both A and R are false.d)Both A and R are true and R is the correct explanation of A.e)Both A and R are true but R is not the correct explanation of A.Correct answer is option 'E'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about In each of the questions given below, there are two statements labelled as Assertion (A) and Reason (R).Assertion (A): Telephone wires sag more in summer.Reason (R): They expand due to summer heat.a)A is true but R is false.b)A is false but R is true.c)Both A and R are false.d)Both A and R are true and R is the correct explanation of A.e)Both A and R are true but R is not the correct explanation of A.Correct answer is option 'E'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In each of the questions given below, there are two statements labelled as Assertion (A) and Reason (R).Assertion (A): Telephone wires sag more in summer.Reason (R): They expand due to summer heat.a)A is true but R is false.b)A is false but R is true.c)Both A and R are false.d)Both A and R are true and R is the correct explanation of A.e)Both A and R are true but R is not the correct explanation of A.Correct answer is option 'E'. Can you explain this answer?.
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