Questions

What is the valency of magnesium?

The unit of power used in industry is

Calculate the time period (in seconds) of a sound wave of wavelength 5m travelling with a speed of 500 m/s.

Two identical resistors of 20 ohm each are connected in parallel. This combination, in turn, is connected to a 10 ohm resister. The equivalent resistance of the combination will be

The energy released at the end of digestion is in the form of

In which year did Ole Romer measure the speed of light for the first time in the history?

What of the following refers to hypotheses which are confirmed by varied tests?

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

He asked him to ______ some documents.