Physics
Instrument for measuring blueness of the sky or ocean is called ________

Bathymeter
Cyanometer
Barometer
Ceraunograph

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Physics
Which of the following is not a property of heavy water ?

Boiling point of heavy water is lower than that or ordinary water
Density of heavy water is higher than that of ordinary water
It produces corrosion
Freezing point of heavy water is higher than that of ordinary water

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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
Both silver and gold pieces weigh equal
The silver piece will weigh more
The gold piece will weigh more

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