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The volume of a balloon is 1000m^(3). It...

The volume of a balloon is `1000m^(3)`. It is filled with helium of density `0.18kgm^(-3)`. What maximum load can it life. Density of air is `1.29kgm^(-3)`

A

600 kg

B

1200 kg

C

300 kg

D

1800 kg

Text Solution

Verified by Experts

The correct Answer is:
B

`1 gL^(-1)=1 kgm^(-3)`
Upthrust = total downward force
`therefore" "1000xx1.29xxg=(1000xx0.09xxg+mg)`
`therefore" "m=1200kg`
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