Physics
When a pail of water is swung in a vertical circle, the water does not fall out at the top of the loop when the speed is

Above a certain minimum value depending on amount of water in the pail
Below a certain minimum value depending on amount of water in the pail
Above a certain minimum value irrespective of amount of water in the pail
Below a certain minimum value irrespective of amount of water in the pail

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Physics
Which one of the following is the correct sequence of passage of light in a compound microscope?

Condenser -Objective lens -Eye -piece -Body tube
Condenser -Objective lens -Body tube -Eyepiece
Eyepiece -Objective lens -Body tube -Mirror
Objective lens -Condenser -Body tube -Eye piece

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