Questions

The absolute refractive index of air is

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

(−12)[11+7×(−3)]÷{}[413−(−3)×(−6)]=

The average of 17 results is 60. If the average of first 9 results is 57 and that of the last 9 results is 65, then what will be the value of 9th result?

Shahjahan was the _____Mughal ruler.

Which of the following is NOT considered as Amir Khusro's creation?

Read the following passage carefully and choose the most appropriate answer to the question out of the four alternatives.

Implanting standards, right values, the science of good and evil are an essential part of education. Many forces thwart this to work, but two of the most serious hindrances to it are examinations and specialization. The examination system is both an opiate and a poison. It is an opiate because it lulls Man into believing that all is well when most is ill. It is a poison because it paralyses or at least slows down the natural activities of the healthy mind. Man finds himself a creature of unknown capacities in an unknown world, wants to learn what the world is like, what he should be and do in it. To help him in answering these questions is the one and only purpose of education. However, tests of progress are useful and necessary. Examinations are harmless when the examinee is indifferent to their result, but as soon as they matter, they begin to distort his attitude to education and to conceal its purpose. For disinterestedness is the essence of all good education and liberal education is impossible without it.

One of the core elements of education is :

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

Costing nothing.