Exams

A sound wave has a frequency of 4 kHz and a wavelength of 40 cm. The time taken by the sound wave to travel a distance of 3.2 km is

Piano was invented by ________.

In the following question, a sentence / a part of sentence is underlined. Below are given alternatives to the underlined part which may improve the sentence. Choose the correct alternative. In case no improvement is required, choose "No Improvement" option.

Herself saw the thief.

The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options.

P: The main manifestations of violence in recent times have been extremism, terrorism, assassination by bombs and bullets.
Q: In the modern world, violence has taken many forms, each signifying the evil side of man and his design to destroy the principle of equity, justice and truth.
R: Another related activity is the hijacking of aircrafts, vehicles etc.
S: A new dimension to the cult of violence has been added by the cult of kidnapping of innocent person and subsequent black mail.

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

The powerful headlights of the truck blinded me for a while.

What is the length of the side of an equilateral triangle, if its area is 36√3 sq cm?

If 6x + 4(2-x) > 3x -2 > 5x/2 - x/4; then value of x is