# Category Chemistry Class – 11

## Black body: definition, laws, effects, and properties

In physics, a black body or blackbody refers to an idealized object that absorbs all electromagnetic radiation incident upon it, regardless of frequency or angle of incidence. and emits radiation at all wavelengths. The radiation emitted by a black body in…

## Rayleigh-Jeans Law: statement, and formula derivation

The Rayleigh-Jeans Law, also known as the Rayleigh-Jeans Formula or Rayleigh-Jeans Radiation Law, is a mathematical expression that describes the spectral distribution of energy radiated by blackbody radiation at thermal equilibrium. It was formulated independently by Lord Rayleigh (John William…

## Stefan-Boltzmann law: statement, constant & formula derivation

The Stefan-Boltzmann Law, also known as Stefan’s law, is a fundamental law in physics that describes how the intensity of thermal radiation emitted by a matter is related to its temperature. This law is named after two pioneering scientists: Josef…

## Wien’s displacement law: statement, formula derivation, & examples

The Wien’s Displacement Law, formulated by the German physicist Wilhelm Wien in 1893, is a fundamental principle in the field of thermal radiation and blackbody radiation. This law describes the relationship between the temperature of an ideal blackbody (a theoretical…

## Planck’s radiation law: definition, statement, formula derivation

The Planck radiation law, also known as Planck’s law, describes the spectral distribution of electromagnetic radiation emitted by a black body in thermal equilibrium. It was formulated by the German physicist Max Planck in 1900 and played a pivotal role…

## Black body radiation class 11: A complete guide

Introduction Black body radiation is the electromagnetic radiation emitted by an idealized object called a black body. A black body is an object that absorbs all radiation and doesn’t reflect or transmit any of it. Consequently, it appears completely black…

## Planck’s Quantum Theory class 11: A Comprehensive Guide

Welcome to our beginner-friendly guide to Planck’s Quantum Theory! In this article, we will explore the fascinating world of quantum physics and how Max Planck’s groundbreaking theory transformed our understanding of the physical universe. Before Planck’s Quantum Theory, scientists relied…

## Particle nature of electromagnetic radiation, class 11

Have you ever wondered about the different types of light and energy that surround us, like visible light, radio waves, and X-rays? Well, scientists have been curious about these too for a long time! They tried to understand if these…

## Wave nature of electromagnetic radiation, class 11

The physical world around us is characterized by electromagnetic radiation, which covers a wide range of energy from radio waves with longer wavelengths to gamma rays with shorter wavelengths. This spectrum of electromagnetic waves is essential to our daily lives…

## Bohr Atomic Model: A Comprehensive Guide

Let’s dive into the fascinating world of atomic physics and explore the Bohr Atomic Model—a really important idea that changed the way we see atoms. Niels Bohr, a smart scientist, came up with this model a long time ago, in…