In copper plating, a current of 0.5A is allowed for cathode area of 100cm2. If…
In copper plating, a current of 0.5A is allowed for cathode area of 100cm2. If this current is…
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Why does a piece of cork float on water?
Why does a piece of cork float on water? A. there is no upthrust on it when completely…
The combination of sound waves with different frequencies is known as
The combination of sound waves with different frequencies is known as A. interference B. diffraction C. superposition D.…
250g of lead at 170oC is dropped into 100g of water at 0oC. If the…
250g of lead at 170oC is dropped into 100g of water at 0oC. If the final temperature is…
Which of the following statements is NOT true? Thermostats are used to control the temperature…
Which of the following statements is NOT true? Thermostats are used to control the temperature of A. pressure…
The accurate measurement of the relative density of substances in powder or granular form can…
The accurate measurement of the relative density of substances in powder or granular form can be done using…
A mango fruit drops from a branch 10m above the ground, just before hitting the…
A mango fruit drops from a branch 10m above the ground, just before hitting the ground its velocity…
The force responsible for holding the moon in its orbit around the earth against the…
The force responsible for holding the moon in its orbit around the earth against the gravitational pull of…
An electric iron is rated at 1000watts, 250v. The corresponding maximum resistance and accompanying current…
An electric iron is rated at 1000watts, 250v. The corresponding maximum resistance and accompanying current is A. 62.5A,…
When equal weights of iron and water are subjected to equal supply of heat, it…
When equal weights of iron and water are subjected to equal supply of heat, it is found that…