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Multiple Choice Question with Only One Choice Correct
Which of the following statements is correct?
(a) The laws of reflection of light hold for plane as well as curved reflecting surfaces
(b) The size of a virtual image can be measured by recieving it on a screen
(c) A dentist uses a convex mirror to examine a small cavity
(d) The focal length of a spherical mirror is half the radius of curvature for all rays

Chemistry

Multiple Choice Question
The maximum possible number of hydrogen bonds a water molecule can form is

(a)

(b)

(c)

(d)

Mathematics

Multiple Choice Question
The line x - 2y + 4z + 4 = 0, x + y + z - 8 = 0 intersects the plane x - y + 2z + 1 = 0 at the point

(a)	(3, 2, 3)	(b)	(5, 2, 1)
(c)	(2, 5, 1)	(d)	(3, 4, 1)

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