Question

12 .Assertion(A): At center of earth g will be zero
Reason(R): Because we can relate g=GM/R2 Where we can relate M is mass of earth, R is radius of the Earth1
13 .Assertion (A): Strain is dimensionless,
Reason (R): Because strain is relate by dl/l where l is length of rod

14. Assertion(A): Rate of change of linear momentum is directly proportional to force applied on body.
Reason (R): F=Ma is Newton's second law,

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these are assertion and reasons ple tell me correct ans
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Answer 1

Answer:

for Q no 12

both statement a and b are right and statement b is correct explanation of statement a

for Q no 13

both statement a and b are right and statement b is correct explanation of statement a

for Q no 14

only statement a is correct