Questions

A formal language used to express information or knowledge, often for use in computer system design is?

The focal length of a concave mirror with a radius of curvature of 20.0 cm is :

A Sonar of a ship sends sounds waves of speed 1000 m/s. These waves are reflected back by the ocean floor in 2 seconds. Find the depth (in m) of theocean floor. 

In each of the questions, four alternatives are given for the Idiom/Phrase. Choose the alternative which best expresses the meaning of the Idiom/Phrase and click the button corresponding to it.

Held up

A sentence has been given in Direct/Indirect Speech.  Out of the four given alternatives, select the one which best expresses the same sentence in Indirect/Direct Speech.

Tina said to him, “Please wait here till I return.”

Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it.

Speech delivered without preparation

In each of the questions, four alternatives are given for the Idiom/Phrase. Choose the alternative which best expresses the meaning of the Idiom/Phrase and click the button corresponding to it.

Under a cloud

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

The area near or surrounding a particular place