cos3A is equal to

People in all the following countries had to be resettled after the 1986 Chernobyl nuclear disaster, except

Which of these is not an Indian Musical Instrument?

Rahul leaves his home and walks 5 km towards east, turns in the south-east direction and walks for 10km, then he turns north-east and moves 10 km. Again, he moves towards the north for 10km. In which direction is he now from starting point?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
Millimetre, Micrometre, Nanometre, ?

In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statement:
(I) Children start writing with a pen in sixth standard.
(II) Ink pen is prescribed by most of the schools for school kids to write with as it maintains the handwriting and comfort of child.

Conclusions:
(I) Till fifth standard kids are unable to use pen on their own completely.
(II) Ink pen maintains a proper flow of ink on paper and takes less effort to put words on paper.

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

In a strange ________________, the production and the consumption of the event become cause for concern. _______________ wonders whether newer forms of “non­caring” or violence are appearing. Somehow, silence, even __________________, quietly suppresses a meditation on such events. __________________ a professor, I can recollect the number of occasions when my students have cried as we discussed such events in class. _____________, society seems so indifferent.

_____________, society seems so indifferent.

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

In a strange ________________, the production and the consumption of the event become cause for concern. _______________ wonders whether newer forms of “non­caring” or violence are appearing. Somehow, silence, even __________________, quietly suppresses a meditation on such events. __________________ a professor, I can recollect the number of occasions when my students have cried as we discussed such events in class. _____________, society seems so indifferent.

__________________ a professor,