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The visible spectrum is the portion of the electromagnetic spectrum that is visible to (can be detected by) the human eye. Electromagnetic radiation in this range of wavelengths is called visible light or simply light. A typical human eye will respond to wavelengths from about 390 to 750 nm in terms of angstrom it is in between 3900 - 7600 A°.
Browsing the
P- bibliophile’s fantasy
Q- towering columns
R- of books is a
A. Flying kites is an old world sport.
B. This sport involves a lot of risk.
C. So, one has to be very cautious and skilful.
heat battered Europe(P) the world over the week(Q) and other parts of (R) Wildfires and scorching (S).
A This lovable big cat is all ready to charm kids in a film version.
B ‘The Tiger who Came to Tea’ is Judith Kerr’s bestselling book,having...
P: Superstitions mean an irrational belief in or notion of the ominous significance of a particular thing, circumstance, or the like.
1. There was a poor fisherman, who had a wife and three children.
P. One day, like always, he threw his net in the seawater.
