Name the source from which litmus solution is obtained. What is the
use of this solution?
Ammonia is found in many household products, such as window
cleaners. It turns red litmus blue. What is its nature?
If the height of a cylinder becomes1/4 of the original height and the
radius is doubled, then which of the following will be true?
(a) Total surface area of the cylinder will be doubled.
(b) Total surface area of the cylinder will remain unchanged.
(c) Total surface of the cylinder will be halved.
(d) None of the above
If the height of a cylinder becomes 1/4 of the original height and the
radius is doubled, then which of the following will be true?
(a) Total surface area of the cylinder will be doubled.
(b) Total surface area of the cylinder will remain unchanged.
(c) Total surface of the cylinder will be halved.
(d) None of the above
If the height of a cylinder becomes 1/4 of the original height and the
radius is doubled, then which of the following will be true?
(a) Curved surface area of the cylinder will be doubled.
(b) Curved surface area of the cylinder will remain unchanged.
(c) Curved surface area of the cylinder will be halved.
(d) Curved surface area will be 1/4 of the original curved surface.
If the height of a cylinder becomes 1/4 of the original height and the
radius is doubled, then which of the following will be true?
(a) Volume of the cylinder will be doubled.
(b) Volume of the cylinder will remain unchanged.
(c) Volume of the cylinder will be halved.
(d) Volume of the cylinder will be 1/4 of the original volume.
What is the area of the largest triangle that can be fitted into a
rectangle of length l units and width w units?
(a) lw/2 (b) lw/3 (c) lw/6 (d) lw/4
A circle of maximum possible size is cut from a square sheet of board.
Subsequently, a square of maximum possible size is cut from the
resultant circle. What will be the area of the final square?
(a) 3/4 of original square. (b) 1/2 of original square.
(c) 1/4 of original square. (d) 2/3 of original square.
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