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Question

Two guns A and B can fire bullets at speeds 1 km/s and 2 km/s respectively. From a point on a horizontal ground, they are fired in all possible directions. The ratio of maximum areas covered by the bullets fired by the two guns,on the ground is

A
1:2
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B
1:4
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C
1:8
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D
1:16
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Solution

The correct option is D 1:16
R=u2sin2θg
A=πR2
AR2
Au4
A1A2=u41u42=[12]4=116.

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