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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Deepak singh 1 Best Answer
Refer attached
sir, how do you know that c lies on the plane and not on the sphere?
what is C ? C is closed curve formed by intersection of sphere and plane . C is part of plane and sphere both . Normal of plane will be fixed at any points taken on plane but on sphere , normal will change at every points . Due to this reason we take n^ for plane.
wow ❕. Thank you Deepak sir.