ncert solutions physics class 11th

The key characteristics of SHM include:

• The amplitude remains constant in ideal SHM.
• The motion is periodic and follows a sine or cosine function.
• The acceleration is proportional and opposite to displacement.
• The time period and frequency are independent of amplitude.
• In SHM, the energy oscillates betwe

In Simple Harmonic Motion (SHM), the restoring force is directly proportional to the displacement from the mean position. It is a periodic motion and acts in the opposite direction. SHM follows the equation, F=? kx, where k is the force constant and x is the displacement. Simple Harmonic Motion is c

According the Chapter 10 Thermal Properties of Matter, there are three primary methods of heat transfer - radiation, convection, and conduction. Convention takes place in fluids, conduction in solids, and radiation does not require a medium and involves the emission of electromagnetic waves. Each me

Calorimetry is used to measure the amount of heat exchanged in the chemical or physical process. It is used to determine the heat transferred from or to a substance. It is useful in determining latent heat, specific heat, and energy changes in reactions. The principle is based on the law of conserva

The amount of heat needed to increase the temperature of one kilogram of a substance by one degree Celsius (or one Kelvin) is the specific heat capacity. It is measured in J/kg·K and it is a material-specific property. Substance with high specific heat makes them useful in thermal regulation systems

Conservative forces (like gravity or spring force) conserve mechanical energy and do not depend on the path taken. The work done by the conservative forces is recoverable.
Non-conservative forces (like friction or air resistance) dissipate energy as heat or sound. It depends on the path. When non-con

Energy is measured in joules (J). It is the capacity to do work while power is the rate of using energy or doing work. Power is measured in watts (W). One watt equals one joule per second. Power talks about how fast the work is done, and energy is about how much work is possible. 

When without slipping a body rotates and translates simultaneously is called rolling motion, such as a wheel on a road. It is the combination of rotatory and translatory motion. The point of contact has zero velocity relative to the surface in pure rolling. It is a condition in which there is no sli

According to the Class 11 Physics Chapter 6 System of Particles and Rotational Motion, for a rigid body to be in complete equilibrium, two conditions should be met:

• Net external torque = 0 (rotational equilibrium)
• Net external force = 0 (translational equilibrium)

The condition for equilibrium in rotat