Questions

In November 2017, who launched ‘Grahak Sadak Koyla Vitaran App’ that aims to benefit customers of Coal India Limited (CIL)?

Raymond Samuel Tomilson is famous for developing which of the following?

Who appoints Chief Election Commissioner of India?

________________ refers to the superposing of two or more coherent waves to produce regions of maxima and minima in space, according to the principle of superposition.

Who wrote the book 'Glimpses of World History'?

The Westminster parliamentary system was developed in ___________.

The vertical angle A of an isosceles triangle ΔABC is three times the angle B of it. The measure of the angle A is

A boat is sailing towards a lighthouse of height 20√3 m at a certain speed. The angle of elevation of the top of the lighthouse changes from 30° to 60° in 10 seconds. What is the time taken (in seconds) by the boat to reach the lighthouse from its initial position?