Two point sources of light are fixed at the centre (A) and circumference (point B) of a rotating turn table. A photograph of the rotating table is taken. On the photograph a point A and an arc BC appear. The angle `theta` was measured to be `theta = 10.8^(@) pm 0.1^(@)` and the angular speed of the turntable was measured to be `omega = (33.3 pm 0.1)` revolution per minute. Calculate the exposure time of the camera.

Two point sources of light are fixed at the centre (A) and circumfere

1.	Two point sources of light are fixed at the centre (A) and circumference (point B) of a rotating turn table. A photograph of the rotating table is taken. On the photograph a point A and an arc BC appear. The angle `theta` was measured to be `theta = 10.8^(@) pm 0.1^(@)` and the angular speed of the turntable was measured to be `omega = (33.3 pm 0.1)` revolution per minute. Calculate the exposure time of the camera.
Answer» Correct Answer - `(0.054 pm 0.003)s`

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