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Physics

Physics
One bar is equal to

104 Pa
106 Pa
103 Pa
105 Pa

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Physics
A parallel-plate capacitor of capacitance C1 is made using two gold plates. Another parallel-plate capacitor of capacitance C2 is made using two aluminium plates with same plate separation, and all the four plates are of same area. If rg and ra are respectively the electrical resistivities of gold and aluminium, then which one of the following relations is correct?

C2>C1
C1>C2
C1 = C2
C1pa = C2pg

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Physics
Light travels fastest in

Air
Glass
Water
Diamond

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Physics
One should not connect a number of electrical appliances to the same power socket because

this can damage the electrical meter
this can damage the domestic wiring due to overloading
this can damage the appliances due to overloading
the appliance will not get full voltage

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Physics
A sphere rolls down on two inclined planes of different angles but same height, it does so

In the same time
With the same speed
In the same time with the same kinetic energy
In the same time with the same speed

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Physics
Sound following a flash of lightning is called

Thunder
Stoning
Bolting
Cloud clash

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