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The refractive index of many materials (such as glass) varies with the wavelength or colour of the light used, a phenomenon known as dispersion. This causes light of different colours to be refracted differently and to leave the prism at different angles, creating an effect similar to a rainbow. In optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency, or alternatively when the group velocity depends on the frequency.
1. “Being shy and
P. flabbergasted by the
Q. reserved by nature,
R. a farmer naturally gets
S. security at the gate and th...
Which is the SECOND sentence of the paragraph?
Each question is divided into four parts a,b,c,d. In some questions they are not in the sequence so according to grammar and context re- arrangement is...
Read the sentence to find out whether there is any grammatical or idiomatic error in it. The error, if any, will be in one part of the sentence. The le...
1. Local industries often
P.protest the high salaries
Q.that this will unreasonably raise
R.arguing vehemently
S.offered by ...
What should be the third sentence after rearrangement?
Rearrange the parts of the sentence in correct order.
P. housing the remaining 39 detainees held in the “war on terror”
Q. on the...
Which of the following is the fifth sentence of the passage?
Which of the following is the sixth sentence of the passage?
Which of the following should be the FIRST sentence after the rearrangement?
