A man with a wrist watch on his hands fall from the top of a tower. Does the watch give correct time?

Answer the following questions: (a) Time period of particle is S.H.M. depends on the force constant k and mass m of the particle : T=2pisqrt(m//k). A simple pendulum executes S.H.M. approximately. Why then is the time-period of a pendulum independent of the mass of the pendulum? (b) The motino of simple pendulum is approximatley simple harmonic for small angles of oscillation. For large angle of oscillation, a more involved analysis (beyond the scope of this book) shows that T is greater that 2pisqrt(l//g) . Think of a quanlitative argument to appreciate this result. (c) A man with a wrist watch on his hand falls from the top of tower. Does the watch give correct time during the free fall? (d) What is teh frequency of oscillation of a simple pendulum mounted iin a cabin that is freely falling under gravity?

Assertion : A man with a wristwatch spring wound his hand falls the top of a tower The watch show this correct time Reason : The acceleration due to gravity have no effect on time period of watch of the time of filling

A man having a wrist watch and a pendulum clock rises on a TV tower. The wrist watch and pendulum clock per chance fall from the top of the tower. Then

A man is watching from the top of a tower a boat speeding away from the tower. The boat makes an angle of depression of 45° with the man's eye when at a distance of 60 m from the bottom of tower. After 5 seconds, the angle of depression becomes 30°. What is the approximate speed of the boat assuming that it is running in still water ?

A man is watching from the top of a tower a boat speeding away from the tower. The boat makes an angle of depression of 45o with the mans eye when at a distance of 60 metres from the tower. After 5 seconds, the angle of depression becomes 30o . What is the approximate speed of the boat, assuming that it is running in still water? (a) 32 kmph (b) 36 kmph (c) 38 kmph (d) 40 kmph (d) 42 kmph

At what distance a watch maker must hold his lens from the watch?

How are wrist watches protected from powerful magnets?

A man standing at a point P is watching the top of elevation of 30^@ . The man walks some distance towards the tower and then his angle of elevation of thetop of the toweris 60^@ . If the height of the tower 30 m, then the distance he moves is