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Concave lens possesses at least one surface that curves inwards. It is a diverging lens, spreading out those light rays that have been refracted through it. A concave lens is thinner at its centre than at its edges, and is used to correct short-sightedness (myopia). After light rays have passed through the lens, they appear to come from a point called the principal focus. The image formed by a concave lens is virtual, upright, and smaller than the object, and it cannot be projected onto a screen.
Select the set in which the numbers are related in the same way as are the numbers of the following sets. (NOTE: Operations should be performed on the w...
Change the question mark with the option that follows the applied logic in the first pair.
Bad : Good :: Destination : ??
‘A # B’ means ‘A is the brother of B’.
‘A @ B’ means ‘A is the daughter of B’.
‘A & B’ means ‘A is the husband of B�...
There is a family of six members. There are two married couples. X is a daughter of F, who has two children. F is the mother of Y. Y is the husband of ...
In the following question, select the figure which can be placed at the sign of question mark (?) from the given alternatives.
If 10 A 5 B 6 C 2 = 53 and 6 A 4 B 8 C 2 = 28, then 17 A 5 B 18 C 9 =?
In a certain code language, ‘DOMINATE' is coded as 'TANIMODE' and 'FAITHFUL' is coded as ‘UFHTIAFL’. What is the code for ‘HIGHWAY’ in the giv...
If 9 March 2007 was Friday, then what was the day of the week on 13 March 2012?
In the question below, some letters are given in two ovals, intersecting each other. The letter(s) given in the intersected portion can be used more tha...
Arun said "Deepak's mother is the mother of my father's wife". How is Deepak related to Arun?
