Riya and Tina are performing an experiment with the simple pendulum, The length of pendulum A is 40 cm. and length of pendulum B is 60 cm. The bobs of the pendulum are taken to a certain point to the mean position and released. Which relation is correct for their observation?
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From the top of a lighthouse 100m high the angle of depression of two ships on opposite sides of it are 60 degree and 30 degree.Find the distance between the two ships.
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