Questions

In which industry Potassium Nitrate is used commercially?

Organisms that generate energy using light are known as ______.

What is main root of plants called as?

The SI unit of acceleration is _______________.

Calculate the frequency (in Hz) of a sound wave of wavelength 5 m travelling with a speed of 360 m/s.

A person holding a pen in his left hand sees his reflection in the mirror holding the pen in his right hand. This is due to which of the following phenomena?

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select ‘No Error’.

Karnataka receives most of its annual rainfall during the monsoon, (1)/ whereas Tamil Nadu does not get much then (2)/ and it has to wait still the advent of northeast monsoon. (3)/ No error (4)

When iron is exposed to moist air, a reddish brown coating of hydrated Iron (III) Oxide (Fe2O3) is deposited on its surface. This reddish brown coating is called