Question

Assertion (A) : A needle placed carefully on the surface of water may float, whereas a ball of the
same material will always sinks.
[ 1
Reason (R) : The buoyancy of an object depends both on the material and shape of the object
a) Both (A) and (R) are true and (R) is the correct explanation of (A)
b) Both (A) and (R) are true but (R) is not the correct explanation of (A)
c) (A) is true but (R) is false
d) (A) is false but (R) is true​

Answer 1

Answer:

a)

Explanation:

it is true because a objects floats or sinks based on their relative density

which depends on surface area(shape) and mass (which may be said by which type of material it is made up of )

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