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Recently Asked Questions

Q.
For a real gas the P-V curve was experimentally plotted and it had the following appearance. With respect to liquefaction. Choose the correct statement.

Option: 1
at T = 500 K, P = 40 atm, the state will be liquid.

Option: 2
at T = 300 K, P = 50 atm, the state will be gas.

Option: 3
at T < 300 K, P > 20 atm, the state will be gas.

Option: 4
at 300 K < T < 500 K, P > 50 atm, the state will be liquid.

Q.
A car is going on a convex bridge a radius R. The driver maintain the constant speed , as the car is ascending on the bridge ,the normal force on it:

Option: 1
Increases

Option: 2
Decrease

Option: 3
Remain same

Option: 4
Fluctuates

Q.
A man weighs 80 Kg. He stands on a weighing machine in a lift which is going downwards with a uniform acceleration of 5 m/s² . What would be the reading of the machine? (reading in Newtons)

Option: 1
400

Option: 2
1200

Option: 3
800

Option: 4
100

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