Questions

What is the principal focus of a spherical mirror?

In the following question, a word has been written in four different ways out of which only one is correctly spelt. Select the correctly spelt word.

The volume (in cu.cm.) of a right circular cylinder with radius 1 cm and height 2 cm is: pi = 22/7

In which year in India, was the demonetisation announcedfor the first time?

Among the world oceans, which ocean is having the widest continental shelf ?

Who is the Bengali writer who won the 31st Moortidevi Award for the year 2017?

Babita Kumari represented India in the Rio Olympics 2016 in which sport?

The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options.

P: The depletion of organic nutrients in the soil has reached alarming proportions, thanks to indiscriminate use of chemical fertiliser in Green Revolution areas.
Q: As against an acceptable level of ‘soil organic carbon’ of well over 5 percent, soils in Punjab are said to have levels far below 1 percent.
R: Besides, 5.3 billion tonnes of soil is eroded annually, at a rate of 16.4 tonnes/hectare.
S: The nutrient imbalance has been skewed by the overuse of urea (N) vis-a-vis phosphatic (P in chemical parlance) and potassic (K) fertiliser.