Question
The motto "liberty, equality, fraternity" originated
from which revolution?Solution
The ideals of "liberty, equality, and fraternity" were popularized during the French Revolution, which began in 1789.
The method of transfer of heat in liquid is
In the atmosphere ultraviolet rays are absorbed by –
The splitting up of white light into seven colours on passing through a glass prism is called as
The instrument which uses sound waves to measure the depth of oceans is –
The Doppler Effect primarily refers to changes in what aspect of waves?
If input frequency of a full wave rectifier be n, then output frequency would be-
Which of the following liquids has the least density?
The waves which are less than 20Hz are known asÂ
The method of transfer of heat in liquid is
Which compound is used to prepare water proof clothes?