Physics
X–rays are

None of these
Neutral particles
Negatively charged particles
Positively charged particles

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Physics
Two identical solid pieces, one of gold and other of silver, when immersed completely in water exhibit equal weights. When weighed in air (given that density of gold is greater than that of silver)

Weighing will depend on their masses
The silver piece will weigh more
The gold piece will weigh more
Both silver and gold pieces weigh equal

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