The weight of an object at the centre of the earth of radius R is
A. zero
B. infinite
C. R times die weight at the surface of the earth
D. 1/R2 times the weight at surface of the earth
Answer:A
The weight of an object at the centre of the earth of radius R is
A. zero B. infinite C. R times die weight at the surface of the earth D. 1/R2 times the weight at surface of the earth