Physics

1.1 Physics

Nature of Light What type of wave of light? Light is an electromagnetic wave. What is the wavelength of light? Wavelength of light is from 4⨯10-7 m. The three major Properties of light The three major properties of light are given below: a) Light is a form of energy. b) Light is a kind of … Read more

Simple Harmonic Motion What is simple harmonic motion? The harmonic motion of constant amplitude in which the acceleration is proportional and oppositely directed to the displacement of the body from a position of equilibrium is called the simple harmonic motion. Why the vibrating motion of tuning fork is called oscillatory motion? We know, if a … Read more

What is thermometric properties of matter? Special properties of matter are used to measure the temperature. Some physical properties of substance change uniformly with the change of temperature. Using that physical property of substance temperature can be measured easily accurately and it is called the thermometric property of that substance. What are the thermometric properties … Read more

What is buoyancy? If a body is immersed partly or completely in liquid or gas a thrust acts vertically upward in it. This upward thrust is known as buoyancy. Write down the law of Pascal? External pressure applied to any portion of a liquid or gas enclosed in a container is equally transmitted in all … Read more

What is a transformation of energy? Energy changes from one state to another. This change is called the transformation of energy. What is a watt? If one-joule work is done in one second or the rate of transformation of energy is called a watt. Write down the dimension of energy. The dimension of energy is … Read more

Write down the dimension of momentum? The dimension of momentum is MLT-1. What is the unit of force? The unit of force is newton(N). What is called weight? The amount of force that a body feels because of the attraction of the earth, that is, the amount of gravity felt by a body is called … Read more

What is scalar quantity? Physical quantities which can be fully expressed by magnitude only are called scalar quantities Length, mass, speed, work, energy, time, temperature, etc. are the examples of scalar quantities. What is vector quantities? Physical quantities which need both magnitude and direction to be fully expressed are called vector quantities. Displacement, velocity, acceleration, … Read more