Questions

Calculate the frequency (in Hz) of a sound wave of wavelength 5 m travelling with a speed of 360 m/s.

Through which does light travel best?

In each of the questions below are given three statements followed by three conclusions numbered I, II, and III. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follow(s) from the given statements disregarding commonly known facts.
Statements:
Some tables are chairs.
All chairs are benches.
All benches are desks.
Conclusions:
I. Some desks are tables.
II. Some benches are tables.
III. Some desks are chairs.

The "Red Shirts" movement was led by?

World War II started in the year?

Babur (1526–1530 AD) was the ruler of which dynasty?

Indus Valley Civilization was a __________ age civilization.

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

A drug or other substance that produces sleep