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Question

The angular position of one of the blades of a fan is θ1=π3 rad, as shown in the figure. If the fan is switched on and off within a fraction of a second, the blade’s angular position changes to θ2=π2 rad. The angular displacement of all the blades is


A
π6 rad
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B
π4 rad
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C
π6 degrees
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D
π4 degrees
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Solution

The correct option is A π6 rad
We know that the angular displacement is given by
Δθ=θ2θ1
=π2π3
=π6 rad

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