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Assertion (A): From Gujarat to Arunachal Pradesh, there is a time lag of two hours.Reason (R): The latitudinal and longitudinal extent of the mainland is about 30°.In the context of the above statements choose the correct option given below –(a) A is correct but R is not correct(b) A is wrong but R is correct(c) Both A and R are true and R is the correct explanation of A(d) Both A and R are true but R is not the correct explanation of A

Question

Assertion (A): From Gujarat to Arunachal Pradesh, there is a time lag of two hours.Reason (R): The latitudinal and longitudinal extent of the mainland is about 30°.In the context of the above statements choose the correct option given below –(a) A is correct but R is not correct(b) A is wrong but R is correct(c) Both A and R are true and R is the correct explanation of A(d) Both A and R are true but R is not the correct explanation of A

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Solution

The correct answer is (d) Both A and R are true but R is not the correct explanation of A.

Explanation:

Assertion (A): From Gujarat to Arunachal Pradesh, there is a time lag of two hours. This statement is true. India spans from 68°7'E to 97°25'E longitude, a difference of approximately 29 degrees. Considering that each 15° longitude corresponds to a difference of one hour, the time difference between the westernmost and easternmost points of India is approximately two hours.

Reason (R): The latitudinal and longitudinal extent of the mainland is about 30°. This statement is also true. The mainland of India extends from about 8°4'N to 37°6'N latitude, a difference of approximately 29 degrees. Similarly, the longitudinal extent is also about 29 degrees as explained above.

However, R is not the correct explanation of A. The time lag is due to the longitudinal extent (east-west difference), not the latitudinal extent (north-south difference).

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