#### Question

Find the angle in radian though which a pendulum swings if its length is 75 cm and the tip describes an arc of length

15 cm

#### Solution

We know that in a circle of radius *r* unit, if an arc of length *l* unit subtends an angle *θ* radian at the centre, then `theta = l/r`

It is given that *r* = 75 cm

Here, *l *= 15 cm

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Solution Find the Angle in Radian Though Which a Pendulum Swings If Its Length is 75 Cm and the Tip Describes an Arc of Length 15 Cm Concept: Concept of Angle.