Q39 / 56 · KVPY 2018 (SA) · Physics

A box filled with water has a small hole on its side near the bottom. It is dropped from the top of a tower. As it falls, a camera attached on the side of the box records the shape of the water stream coming out of the hole. The resulting video will show
 

  • A
    the water coming down forming a parabolic stream
     
  • B
    the water going up forming a parabolic stream
     
  • C
    the water coming out in a straight line
  • Correct answer
    D
    no water coming out

Solution

When box with hole is in free fall, both water and box cover equal distance downwards in equal time. Hence, no water comes out of hole in free fall of box.

Hence, the correct answer is option: 'D'.

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