Related InterviewSolutions

• A hollow light cylinder of length 10 cm is suspended by a string of length 95 cm. Calculate the time period of this simple pendulam when the cylinder is completely filled with mercury, (ii) half filled with mercury, (g=9.81 `ms^(-2)`)
• A pendulum clock is mounted in an elevator car which starts going up with a constant acceleration `w`, with `w lt g`. At a height `h` the acceleration of the car reverses, its magnitude remaining constant. How soon after the start of the motion will the clock show the right time again ?
• A simple pendulam of period 2 s is suspended from the cielieng of a car at rest. The car moves horizontally with acceleration 4.9 `ms^(-2)`. Find the period of oscillation of the pendulam. [Hint: Bring the car to rest by applying inertia force. Consider the moition of the pendulam in this condition . `T=2pisqrt((l)/(sqrt(a^(2)+g^(2))))`.]
• A compound pendulum consists of a rigid light rod having two spherical bobs of masses `m_(1) and m_(2)` at distance `l_(1) and l_(2)` from the centre of suspension. Find the time period of oscillations of the pendulum
• A uniform cirucular disc of 25cm radius oscillates in its own plane about points on its circumference. Calculate the time of oscillation `(g=9.8ms^(-2))`
• A simple pendulam which beats a second on the surface of the earth where g=9.8`ms^(-2)` is taken to the top of a hill where it is found to lose 2 s in an hour, What is the hight of the hill ?(Radius of the earth =`6.
• A faultyu seconds pendulems loses 9 s per day. Find the required alteration in length for it to keep correct time.