The power of a water pump is 2 kW. If `g = 10 m//s^2,` the amount of water it can raise in 1 min to a height of 10 m is :

Options

A. 2000 lit
B. 1000 lit
C. 1000 lit
D. 1200 lt

Answer

D

Explanation

Power , `P = W/t = (mgh)/t `
`m = (Pxxt)/gh = (200 xx60)/(10 xx10) kg `
` m = 1200 kg " " (1 gm//"cc")`
` = 1200 xx10^(3) cm^(3) " " (1000 cm^(3) = 1l)`
m 1200 litre