Questions

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

While watching 3D movies at the theater, we have to wear special glasses because?

The ionosphere overlaps which two layers of the atmosphere?

Hindustan Aeronautics Limited handed over the  first  two  indigenously designed  and manufactured  light  combat  aircrafts  to  the Indian Air Force in 2016. What is the name of these new combat aircrafts?

Which one of the following films was not directed by Satyajit Ray?

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.

Select the word with the correct spelling.

Which among the following is not a folk dance form of Kerala?