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Physics

Physics
The dimension MLT–2 corresponds to

Velocity
Acceleration
Work done
Force

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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 :

0.12777777777778
0.21111111111111
0.12638888888889
0.20902777777778

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Physics
Brightness of bulb depends on voltage or current?

Voltage
Both A & B
Current
None

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Physics
Which type of reaction produces the most harmful radiation ?

Fusion reaction
Photo-Chemical reaction
Chemical reaction
Fission reaction

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Physics
Which term is not associated with sound wave?

Mach
Hertz
Decibel
Candela

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Physics
Of the following properties of a wave, the one that is independent of the other is its

wavelength
amplitude
frequency
velocity

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