Physics
Indicate the false statement about the resistance of a wire

Resistance of metallic wire increases with increase in temperature
It is directly proportional to the length of wire
It is directly proportional to the area of cross-section of wire
It depends on material of wire

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

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

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Physics
A transformer

Converts electrical energy into mechanical energy
Is used to decrease or increase AC voltage
Converts AC voltage to D.C. voltage
Converts DC to AC

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