Questions

Find the potential energy gained by a body of mass 25 kg, if it is raised by 5 m. (use g = 10 m/s2)

Under which Article of Indian Constitution an emergency can be declared on the grounds of failure of constitutional machinery in the states?

Which of the following is biodegradable?

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

The nation has been _____as a relatively extensive, territorial relation of nativity. We have further formulated the_____of the nation as a territorially_____, yet bounded, social relation for the generation, transmission, and ____of life. When the nation is a national state, it is also a_____for the protection of life. The nation is often ______by the metaphor of familial relations and, indeed, has sometimes been considered as some kind of_____family. This is understandable because both the nation and the family are relations of_____. Nonetheless, there is an important difference, and to understand this will _____a more detailed examination of the_____ between territory and bonding.

When the nation is a national state, it is also a ______ for the protection of life.

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.

My friend said, "I can lift 50 kilos easily."

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

There is a time in every man's education when he arrives at the conviction that envy is ignorance; that imitation is suicide; that he must take himself for better, for worse, as his portion; that though the wide universe is full of good, no kernel of nourishing corn can come to him but through his toil bestowed on that plot of ground which is given to him to till. The power which resides in him is new in nature, and none but he knows what that is which he can do, nor does he know until he has tried. Not for nothing one face, one character, one fact, makes much impression on him, and another none. This sculpture in the memory is not without pre-established harmony. The eye was placed where one ray should fall, that it might testify of that particular ray. We but half express ourselves, and are ashamed of that divine idea which each of us represents. It may be safely trusted as proportionate and of good issues, so it be faithfully imparted, but God will not have his work made manifest by cowards. A man is relieved and gay when he has put his heart into his work and has done his best; but what he has said or done otherwise, shall give him no peace. It is a deliverance which does not deliver. In the attempt his genius deserts him; no muse befriends; no invention, no hope.

What does the word 'Manifest' mean?

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

The first working steam­ powered vehicle was designed and most likely built by Ferdinand Verbies, a Flemish member of a Jesuit mission in China around 1672. It was a 65 cm long scale­ model toy for the Chinese Emperor, that was unable to carry a driver or a passenger. It is not known if Verbiest's model was ever built. Nicolas- Joseph Cugnot is widely credited with building the first full­ scale, self ­propelled mechanical vehicle or automobile in about 1769; he also created a steam­ powered tricycle. He constructed two steam tractors for the French Army, one of which is preserved in the French National Conservatory of Arts and Crafts. His inventions were however handicapped by problems of water supply and maintaining steam pressure. In 1801, Richard Trevithick built and demonstrated his Puffing Devil road locomotive, believed by many to be the first demonstration of a steam ­powered road vehicle. It was unable to maintain sufficient steam pressure for long periods. Sentiment against steam ­powered road vehicles led to the Locomotive Acts of 1865. In 1807 Nicephore Niepce and his brother Claude probably created the world's first internal combustion engine which they called Pyreolophore.

Cugnot built steam tractors for:

The area of a circle is 38.5 cm2. Find its circumference (in cm).