GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the level of the liquid in the two vessels are at the same height
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the temperature of the liquids in the two vessels are the same
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the densities of the liquid in the two vessels are equal
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both its limbs are of unequal length
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Detailed explanation-1: -Siphon is a device to transfer liquid from a higher level to a lower level. So there will be no such case when the level of the liquid in both vessels is same, otherwise it will not work. So siphon will fail to work if the level of the liquid in the two vessels are at the same height.
Detailed explanation-2: -For a siphon to flow continuously, the height of the upper leg (h) must be less than atmospheric pressure and the outlet of the down leg (L2) must be below the surface of the upper reservoir (L1). The siphon conduit must also be completely full and free of air and liquid vapor.
Detailed explanation-3: -On sucking, the pressure of the air inside the siphon decreases and the atmospheric pressure on the liquid outside pushes the liquid up in the siphon. If there is vaccum, i.e., there is no atmospheric pressure, then there is no force on the liquid that can push the liquid into the siphon and siphon does not work.
Detailed explanation-4: -Siphon, also spelled syphon, instrument, usually in the form of a tube bent to form two legs of unequal length, for conveying liquid over the edge of a vessel and delivering it at a lower level. Siphons may be of any size.
Detailed explanation-5: -A syphon is a long-bent pipe used to connect two reservoirs at different levels through a high ridge.