Question

5 Mark's question...


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Answer 1

Answer:

0.5 cm

Explanation:

Displacement of water by 500 persons: 500 x 0.04 = 20m raise to 3

Displacement = rise in water

20m raise to 3 = 80 x 50 x h

h= 20/80x50

= 20/4000

1/200

=0.5cm

Hope u got it :D

Answer 2

✌✌Here is your answer✌✌

Let

the rise of water level in the pond be hm, when 500 peoples are taking a DIP into a cuboidal pond .

Given that,

Length of the cubodial pond=80cm

Breadth of the cubodial pond=50cm

Now volume for the rose of water level in the pond=Length × Breadth × Height

=80×50×h=4000hm^3

and the average displacement of the water by a person = 0.04 M^3

So, the average displacement of the water by 500 persons = 500×0.04m^3

Now, by the given condition

Volume for the rise of water level in the pond = average displacement of the water by 500 persons

=> 400h=500×0.04

h=500×0.04/4000

=20/4000

=1/200 m

=0.5 cm

Hence, the required rise of water level in the pond is 0.5 cm.

⭐Mahir⭐