Solved Numerical Problems | Chapter 7 Oscillation | Physics 11th | KPK Textbook Board Peshawar Hindi

A force of 0.4N is required to displace a body attached to a spring through 0.1m from its mean position. Calculate the spring constant of spring. A pendulum clock keeps perfect time at a location where the acceleration due to gravity is exactly 9.8ms-2. When the clock is moved to a higher altitude, it loses 80s per day. Find the value of g at this new location. Calculate the length of a second; pendulum having time period 2s at a plate where g=9.8ms-2. A body of mass m, suspended from a spring with force constant k, vibrates with f1. When its length is cut into half and the same body is suspended from one of the halves, the frequency is f2. Find out f1f2-1. A mass at the end of spring describes S.H.M with T=0.4s. Find out a ⃗ when the displacement is 0.04m. A block weighting 4kg extends a spring by 0.16m from its un-stretched position. The block is removed and a 0.50kg body is hung from same spring. If the spring is now stretched and then released, what is its period of vibration? What should be the length of simple pendulum whose time period is one second? What is its frequency? A spring, whose spring constant is 80nm-1 vertically supports a mass of 1kg is at rest position. Find the distance by which the mass must be pulled down, so that on being released, it may pass the mean position with velocity of one metre per second. A 8000g body vibrates S.H.M with amplitude 0.3m. The restoring force is 60N and the displacement is 0.3m. Find out (i) T (ii) a ⃗ (iii) v ⃗ (iv) K.E (v) P.E when the displacement is 12cm. Find the amplitude, frequency and time period of an object oscillating at the end of a spring, if the equation for its position at any instant t is given by x=0.25cos(π/8)t. Find the displacement of the object after 2s.