Properties of Matter Test

Result

Properties of Matter Test - 3

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Question 1
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A completely filled closed aquarium is kept on a weighing machine. It can be assumed that the density of the fish is greater than the density of the water. The total mass of the aquarium and its contents put together is M. If now all the fish start accelerating upwards with an acceleration a, then the incorrect option (s) is/are

A
the weight recorded will be equal to Mg.

B
the weight reading will be less than Mg.

C
no conclusion can be drawn from the given information.

D
the weight reading will be more than Mg.

Solution

Since acceleration of centre of mass is upward, therefore N must be greater than mg.