Question
Question: A cork is submerged in water by a spring attached to the bottom of a bowl. When the bowl is kept in ...
A cork is submerged in water by a spring attached to the bottom of a bowl. When the bowl is kept in an elevator moving with acceleration downwards, the length of spring
A
Increases
B
Decreases
C
Remains unchanged
D
None of these
Answer
Decreases
Explanation
Solution
Effective weight W′=m(g−a) which is less than actual weight mg, so the length of spring decreases