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Physics

Physics
Speed of sound is maximum in which among the following?

Liquids
Solids
Vaccum
Gases

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Physics
In very cold countries alcohol is used as a thermometric liquid because

Alcohol can be coloured for its level to be seen easily
Its freezing point is very low
Alcohol is a poor conductor of heat
It will not stick to the glass tube

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Physics
If the current flowing through a circuit is 0.6 A for 6 mins, the amount of electric charge flowing through it is ________

60 C
36 C
216 C
360C

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

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Physics
Shaving mirror is

Convex
Plane
Concave
Parabolic

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Physics
The hydraulic brakes used in automobiles is a direct application of :

Archimedes' principle
Toricellian law
Bernoulli's theorem
Pascal's law

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