Question
Acid and water are mixed in a vessel A in the ratio of
5:2 and in the vessel B in the ratio 8:5. In what proportion should quantities be taken out from the two vessels so as to form a mixture in which the acid and water will be in the ratio of 9:4?Solution
Ratio of quantity = 7:2
How much calorie of energy is released by a boiled egg?
 Photovoltaic cells are:Â
Quantum Theory was discovered byÂ
The motion of a freely falling body is an example of ______________ accelerated motion.
The method of transfer of heat in liquid is
Among the following, which has the lowest density?
Which of the following is the best fire-extinguisher?
Which Instrument is used to measure depth of ocean?
Why is red colour preferred for danger signal lights?
Which of the following instruments is correctly matched with its function?
I) Voltmeter - Measures potential differenceÂ
II) Ammeter - Me...