Questions

The frequency of direct current is _____________

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

Which of the following bank will allow its customers to make card-less cash withdrawals at over 100000 ATMs across India? 

Three crops that contribute maximum to global food grain production are _________

In the following question, four words are given out of which one word is incorrectly spelt. Select the incorrectly spelt word.

In the following question, out of the four alternatives, select the word opposite in meaning to the word given.
Intrepid

Four words are given, out of which only one word is spelt correctly. Choose the correctly spelt word and click the button corresponding to it.

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