Questions

If a ball is thrown up, which of the following does not change?

A Sonar of a ship sends sounds waves of speed 1000 m/s. These waves are reflected back by the ocean floor in 2 seconds. Find the depth (in m) of theocean floor. 

Resistance switching is normally employed in

Mahatma Gandhi was born in which year?

Which of the following was a major industry in the Mughal period?

Amir Khusro was a

The percentage change of a number when it is first decreased by 10% and then increased by 10% is

____ is the most electropositive and ___ is the most electronegative element of the third period of modern periodic table.