| The U-tube shown below is immersed in ice water. X and Y are the red ink droplets present inside the tube. |
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| What will you observe after some time? |
A) X will move downwards and Y will move upwards.
B) X will move upwards and Y will move downwards.
C) X and Y will move upwards.
D) X and Y will move downwards.
Correct Answer: D
Solution :
Due to the cooling effect of ice water, the air in the U-tube contracts, due to which the red ink X and Y move downwards.
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