Question

# Consider the following statements about acceleration due to gravity on earth and mark the correct statement(s) :

A
The value of g is constant throughout
B
g=g(1dr)
C
g is slightly less (by about 1%) when distance <200m
D
g is slightly greater when distance <200m

Solution

## The correct option is C $$g' = g(1 - \dfrac {d}{r})$$Acceleration due to gravity at depth d,  $$g'=g(1-\dfrac{d}{r})$$,   where $$r$$ is the radius of earth.Thus $$g$$ is not constant throughout.Also  for  $$d=200 m$$                $$g'= g(1-\dfrac{200}{6400\times 1000})$$Now       $$\dfrac{g-g'}{g} \times 100= .003$$ %Thus $$g$$ is much more less than $$1$$%.Physics

Suggest Corrections

0

Similar questions
View More

People also searched for
View More