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2 cm of rain has fallen on a square kilo...

2 cm of rain has fallen on a square kilometer of land. Assuming that 50% of the rain drops could have been collected and contained in a pool having a `100 m xx 10 m` base, by what level would the water level in the pool have increased?

A

15 m

B

20 m

C

10m

D

25m

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • 2 cm of rain has fallen on a square km of land. Assuming that 50% of the raindrops could have been collected and contaied in a pool having a 100 m xx 10m base, by what level would the water level in the pool have increased ?

    A
    1km
    B
    10m
    C
    10cm
    D
    1m

  • A projectile is projected at an angles of 37^(@) to the horizontal. Had it been projected at 53^(@) , its time of flight on level ground would have been 1 sec more. At what angles should it be projected so that its range is 10 m less than either of the situations ?

    A
    `26.5^(@)`
    B
    `30^(@)`
    C
    `18^(@)`
    D
    `15^(@)`

  • In the figure, the cross-sectional area of the smaller tube is a and that of the larger tube is 2a . A block of mass m is kept in the smaller tube having the base area that of the tube. The difference between water levels of the two tubes is

    A
    `(P_(0))/(rhog)+m/(arho)`
    B
    `(P_(0))/(rhog)+m/(2arho)`
    C
    `m/(arho)`
    D
    `m/(2rhoa)`
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