Properties of soundSound: The disturbance produced by the particles of matter about their mean position is called sound. sound is a mechanical property of matter which means that the WAVES of sound need a medium for their propagation. Without any medium sound does not propagate, which means that sound can not travel in a vacuum. Production of sound: As you know sound is produced by the disturbance of particles of matter about their mean position,...

 Coulomb’s law of electrostaticsCoulomb’s law: This is the fundamental law of electrostatics without this law we cannot understand the nature and properties of charges and their behavior so to understand the nature we must know about this law proposed by the French physicist Charles-Augustin de Coulomb in 1785 to find the nature of charges so the law is given below Statement: “The force of attraction or repulsion between two charges is directly proportional to...

 Electrostatics and laws of electrostaticsElectricity is the study of charges at rest and in motion. The study of charges at rest is called static electricity, and the study of charges is called current electricity or dynamics electricity. First of all, here we discuss the static charges and their properties and laws of static electricity. Electricity charge: As we know mass is the inherent property of an object as smaller objects have small inertia...

 Some important terms in geometrical optics Reflection of light: When the light rays strike the barrier and most of the rays return to the same medium is called reflection of light. There are different terms that are used to describe the reflection of light. Incident ray: The coming ray which strikes the barrier is called the incident ray. Reflected ray: The return back of the ray after the strike is called the reflected ray. Point of incident: The...

 Sound and their property and characteristics Sound: Sound is the disturbance of the particle at a specific frequency that receives a receptor to detect Sound is longitudinal waves traveling through a medium; without a medium, sound waves can not travel. Production of sound: Sound can be produced by the vibration of particles, without the vibration sound can not be produced. For the production of sound the vibration of sound can must have a specific...

 SOME IMPORTANT TERMS ASSOCIATED WITH WAVES AND SIMPLE HARMONIC MOTION Oscillatory motion: The backward and forward motion of a body to its mean position and the path of the motion is called oscillatory motion. Some terms are related to oscillatory motion. Cycle/ vibration: The complete one-round trip of a body is called a cycle. Time period: The time in which the oscillatory body completes its round is called time period. Frequency: ...

 Important terms of physics: Atmospheric pressure: The pressure exerted by surrounding air particles in a specific region of the earth is called atmospheric pressure. Pascal's principle states that when pressure is applied to a liquid, it is transmitted in all directions equally without loss. Liquid pressure: The pressure of a liquid is directly proportional to its surface, which means the deeper you go in-depth, the higher the pressure will be.                                                           P=...