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Physics

Physics
Which law relates to the ideal gas law?

T1/V1 = T2/V2
P1V1 = P2V2
P1T1 = P2T2
P1/V1 = P2/V2

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Physics
A car accelerates uniformly from 18 kmph to 72 kmph in 5 s. The acceleration of the car (in m/s2) is:

5
3
6
7

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Physics
At hill stations, the boiling point of water will be

More than that at sea level
Equal to the melting point of ice
Same as at sea level
Less than that at sea level

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Physics
A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of the emf's is :

0.20902777777778
0.21111111111111
0.12638888888889
0.12777777777778

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Physics
Choose the most appropriate answer: Natural radioactivity was discovered by

Enrico Fermi
Henry Bacquerel
Earnest Rutherford
Marie Curie

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Physics
Shock-absorbers are usually made of steel as it :

Has no ductile property
Has lower elasticity
Has higher elasticity
Is not brittle

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