Hari kumar K.C. @kumar_physicist

@Its_karishma Yes, same here in the swoyambhu area....

Refraction 😍

Physisc 👍👍👍

The goal of teaching should not be to help the students learn how to memorize and spit out information under academic pressure. The purpose of teaching is to inspire the desire for learning in them and make them able to think, understand, and question.

If you cannot explain something simply, you do not understand it deeply.

Compton scattering is the phenomenon where a photon interacts with a charged particle, typically a loosely bound electron, resulting in the transfer of energy and momentum. An incident photon collides with a target electron at rest, transferring some of its energy to the electron. As a result, the photon is scattered at an angle (theta ) and experiences a decrease in energy, which corresponds to an increase in its wavelength. The electron recoils at an angle(phi ), gaining kinetic energy and momentum.  This process provides strong evidence that light behaves as discrete particles (photons), as the interaction follows the principles of conservation of energy and momentum like a particle-particle collision.

Everything in the universe is moving !

How an electromagnetic wave travels

John Bardeen is the only person to have won the Nobel Prize in Physics twice. First (1956) → for the invention of the transistor, along with William Shockley and Walter Brattain. Second (1972) → for the development of the theory of superconductivity, known as the BCS theory, shared with Leon Cooper and Robert Schrieffer

Quantum entanglement is a phenomenon where two or more particles become correlated in such a way that the state of one instantly influences the state of the other, regardless of the distance between them. It challenges classical notions of locality and lies at the heart of quantum information science.

Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding. - Bill Thurston

One word for Richard Feynman? ✍️

Plato is my friend — Aristotle is my friend — but my greatest friend is truth. - Sir Isaac Newton

The double slit experiment was first performed by Thomas Young in 1801, as a demonstration of the wave nature of light. He used a coherent light source, such as sunlight or a candle, and passed it through a narrow slit in a card. Then he placed another card with two parallel slits close to the first one, and observed the light pattern on a screen behind the second card. He expected to see two bright spots on the screen, corresponding to the two slits, but instead he saw a series of bright and dark fringes, called an interference pattern. This meant that the light waves passing through the two slits interfered with each other, creating regions of constructive and destructive interference. This was evidence that light was not made of particles, as Isaac Newton had proposed, but of waves, as Christiaan Huygens had suggested. However, with the development of quantum mechanics in the early 20th century, it was discovered that light could also behave like particles, called photons. In 1905, Albert Einstein explained the photoelectric effect by assuming that light was composed of discrete packets of energy that could knock electrons out of metals. In 1924, Louis de Broglie proposed that matter could also have wave properties, and derived a relation between the wavelength and momentum of any particle. In 1927, Clinton Davisson and Lester Germer, and independently George Thomson and Alexander Reid, confirmed this hypothesis by showing that electrons could produce interference patterns when scattered by crystals. Later, it was shown that atoms and molecules could also exhibit wave-particle duality. The double slit experiment was then repeated with single photons or electrons, one at a time. Surprisingly, even when only one particle was sent through the slits at a time, an interference pattern still emerged on the screen after many repetitions. This meant that each particle somehow interfered with itself, as if it went through both slits at once. However, if detectors were placed at the slits to observe which slit each particle passed through, the interference pattern disappeared. This showed that the act of measurement affected the outcome of the experiment, and that the particle's behavior depended on whether it was observed or not. This phenomenon is known as quantum superposition and collapse, and it implies that quantum systems exist in a state of uncertainty until they are measured. The experiment has profound implications for our understanding of reality and the nature of observation. It challenges our classical intuition and forces us to accept that reality is not deterministic but probabilistic at the quantum level.

शीर्षक " बस्दिन् तिम्रो काठमाण्डू" विपिन कार्की साच्चिकै बहुमुखी प्रतिभाका धनी रहेछन्❤️

Everything in the universe is moving !

Physics and accuracy. That's why it works even if we believe it or not. ✍️

The double slit experiment was pivotal in demonstrating the wave-particle duality of light and matter. When particles like electrons are fired through slits, they produce an interference pattern typical of waves, not particles.

@itirms88 ल ल जानुस् , चोर कमिलाले टोक्ला बिचार गर्नुस् है।

@prabisha_ Wow congratulations !!