Questions

The centre of the reflecting surface of a spherical mirror is a point called the ___.

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

An echo is returned in 3 s. What is the distance of the reflecting surface from the source, considering the speed of sound as 342 ms-1?

As of 2018, who is the CEO and president of MasterCard?

The Typhoon named 'Goni' has recently hit which country?

The per capita income in India was '20 in 1867-68, was ascertained for the first time 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'.
He did not go (1)/ to the temple on foot (2)/ he went there by the car. (3)/ No Error (4)

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.

She said to me, "I always drink a cup of green tea as soon as I get up."