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Question

If the height of a cylinder is doubled and radius remains the same, then volume will be

(a) doubled

(b) halved

(c) same

(d) four times


Solution

Let V1 be the volume of the cylinder with radius r1 and height h1, then

……. (1)

Now, let V2 be the volume after changing the dimension, then

So,

Hence, the correct option is (a)


Mathematics
RD Sharma (2017)
Standard IX

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