NCERT Exemplar VIII — task. Science CBSE, Class 9.

PDF chapter test TRY NOW

1. The weight of an object at the centre of the earth of radius

$R$ is

$zero$
$\frac{1}{R^2}$ times the weight at surface of the earth
$infinite$
$R$ times the weight at the surface of the earth

2. An object weighs

$10\ N$ in air. When immersed fully in water, it weighs only

$8\ N$ . The weight of the liquid displaced by the object will be

$8\ N$
$2\ N$
$12\ N$
$10\ N$

Login or Fast registration

Previous exercise

Exit to the topic

Did you find an error?

Register for free to see more content

Register for free to see more content