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Physics

Physics
The SI unit of luminous emittance is :

Lumen second
Candela
Lux
Lumen

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Physics
A body is initially moving with a velocity of 5 m/s. It undergoes an acceleration of 2 m/s2 for 4 seconds. Find the displacement (in m) of this body in these 4 seconds.

8
4
72
36

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Physics
Oil raise up the wick in a lamp. The principle involves

the diffusion of oil through the wick
the liquid state of oil
capillary action phenomenon
volatility of oil

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Physics
In electronics what comes under tank circuit ?

Resistance, capacity and inductance
Capacity and inductance
Resistance and inductance
Resistance and capacity

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Physics
The intensity ratio of waves is 25 : 9. What is the ratio of their amplitudes?

1.0479166666667
0.12847222222222
0.21041666666667
2.0958333333333

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Physics
The velocity of sound in moist air is more than in dry air because the moist air has

More density than dry air.
More pressure than dry air.
Less density than dry air.
Less pressure than dry air.

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