Question
What happens to the wavelength of light when it passes
from a medium of higher refractive index to a medium of lower refractive index? ÂSolution
When light passes from a medium with a higher refractive index to one with a lower refractive index, its speed increases, and thus its wavelength also increases.  This is a consequence of the relationship between speed, frequency, and wavelength.  The frequency of light remains constant, but the wavelength changes when the light enters a different medium.
Choose the correct meaning of the idiom/phrase given below :
be down with
Select the correct meaning of the given idiom.
On the spur of the momentÂ
Reap the whirlwind
A person who preserves skin of animals
Select the idiom/phrase that most accurately and contextually replaces the bolded segment.
The journalist’s article made assumptions withou...
Select the most appropriate meaning of the given idiom.
Make head or tail of something
to hit the headlines
When two heavyweights have an argument, its best to sit on the fence  and not make either of the turn against you.Â
In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.
Ne...
He has to abide by the hard and fast rules of the company
