Questions

A Sonar of a ship sends sounds waves of speed 1500 m/s. These waves are reflected back by the ocean floor in 5 seconds. Find the depth (in m) of the ocean floor.

The beach sands of Kerala are rich in

Which country has made world's first all-electric ship, which can travel up to 80 Km with 200 tons cargo after a two hour charge?

_____________ is the number of deaths in the population during a given period.

Which of the following is man-made fibre?

The constitution of India was framed by:

Android is a mobile operating system designed primarilyfor touch screen mobile devices such as smartphones andtablets. Which among the following was the first Android Operating System?

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'.

The evolutionary history of penguins (1)/ is well-researched and represents a showcase of (2)/ evolution bio geography. (3)/ No error (4)