## 13. Class 11th Physics | SHM | Time Period of SHM of a Simple Pendulum | by Ashish Arora (GA)

let’s find out the time period of s echch m of a simple pendulum. we know that, a simple pendulum is a bob which is tied up at one end of an ideal inextensible string, of length l, and the bob mass is m. in this situation at iquilibrium position we can simply state tension

## 17. Class 11th Physics | SHM | Compound Pendulum | by Ashish Arora

let us study about compound pendulum. we can simply state, that a rigid body. hanging freely. from a horizontal axis. is termed as, a compound pendulum. whenever a rigid body is suspended, from a horizontal axis of rotation, say there’s a random shaped body, which is suspended about, a horizontal axis of rotation a-a-dash. obviously

## 16. Physics | SHM | Time Period of a Torsional Pendulum | by Ashish Arora (GA)

let’s find out, the time period of a torsional pendulum. a torsional pendulum is made by suspending, any rigid body from a stiff wire. like say we’re having a stiff wire, with its coefficient, of stiffness, equal to c. we suspend, say a disc from the stiff wire, such that the disc remains horizontal, in

## 25. Class 11th Physics | SHM | Solved Example-9 on Simple Harmonic Motion | by Ashish Arora

in this example, we’re given that a vertical uniform u-tube of cross sectional area ay is filled with a liquid, of mass m. it says if liquid in one arm is pushed down by a small displacement and released, we’re required to prove that liquid executes simple harmonic motion and we’re also required to find

## 27. Class 11th Physics | SHM | Effect of Constant External Force on SHM | by Ashish Arora

in this section, we’ll discuss the effect of constant external force, on a simple harmonic motion. to understand the concept, let us take an illustration, say, we’re given with a spring block system, based on a smooth horizontal surface. and, say the block is of mass m and spring is having a force constant k.