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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Mahak Best Answer
this question does not have any write option see attached formula used is this only for this question
sir, its option given to be D
i dont know is there any optional error occur
yahh previously also one student asked the same question and correct way to solve this ques is this only so acc to this approach no option matches so kindly go with approach maybe there's some error in options