Questions

If the acceleration due to gravity on the surface of earth is g, then the acceleration due to gravity on the surface of a planet whose mass is double that of earth and radius is same as that of earth is _________________.

Calculate the work done by the force of gravity when a satellite moves in an orbit of radius 40,000 km around the earth.

Vistara airline is a joint venture between Tata Sons and which international airlines?

Who is the Vice Chairperson of NITI Aayog ?

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.

Of the three activities of thought, word and deed, perhaps thought is the most ______ and powerful force, for it is the ______ of the other two. Success is achieved twice, once in the mind and the second time in the real world. No matter in whose mind thought occurs; its laser-like energy seeks a target. That’s why we give so much importance to ______, seeking divine blessings before ______ on any project as we know that positive thinking is a strong force that can be ______ for the welfare and success of all.

the most ______ and powerful

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

‘Do you have anything to say on behalf of the accused?' said the judge finally.

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.

The first full­scale, working steam ­powered tricycle was built by:

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

They did nothing (1)/ that was down the (2)/ dignity of princes. (3)/No Error (4)