Physics Tutor in Medina
+91-9958461445
Medina is one of the most respected and peaceful cities in Saudi Arabia. It is a city of faith, discipline, culture, education, and responsibility. Families living in Medina understand the value of education because education builds the future of children, families, society, and the nation. When children study well, they become confident. When students become confident, families become stronger. When families become stronger, the whole community grows.
Today, many parents in Medina want their children to study in top schools, prepare for competitive exams, and later go to good universities in India, USA, UK, Canada, Europe, or other countries. But one common problem many students face is Physics. Physics is a subject where students need clear concepts, regular numerical practice, and a teacher who can explain difficult topics in a simple way.
If you are looking for Physics Tutor in Medina, you do not need to send your child to India for Physics tuition. You can connect online with Kumar Sir from Delhi. Kumar Sir has more than 30 years of teaching experience and teaches CBSE Physics, NEET Physics, IIT-JEE Physics, AP Physics, IB Physics, IGCSE Physics, A Level Physics, and British Curriculum Physics.
Physics is not only about formulas. It is about understanding nature. Motion, force, energy, electricity, magnetism, waves, optics, modern physics, atoms, nuclei, semiconductors, and electromagnetic waves are all connected with real life. A good Physics teacher makes these topics simple and interesting. When the concept becomes clear, Physics becomes easy.
Why Students in Medina Need a Good Physics Tutor
Many students in Medina study in Indian schools, international schools, British curriculum schools, American curriculum schools, and private institutions. School teaching is important, but sometimes it is not enough for competitive exams like NEET and IIT-JEE. A student may understand theory in class, but when a numerical question comes, the student gets confused.
For NEET students, Physics is often the rank-deciding subject. Biology is usually strong for many medical aspirants, but Physics creates pressure because it needs speed, accuracy, and formula application. Chapters like Mechanics, Current Electricity, Magnetism, Ray Optics, Wave Optics, Modern Physics, Thermodynamics, SHM, and Semiconductor must be prepared properly. If you need NEET Physics Tutor in Medina, Kumar Physics Classes can help with concept clarity, previous-year questions, and regular practice.
For IIT-JEE students, Physics needs deeper thinking. JEE Physics is not only direct formula putting. It requires imagination, diagrams, multi-concept application, and strong fundamentals. If you are searching for IIT Physics Tutor in Medina, JEE Physics Tutor in Medina, or IIT-JEE Physics Tutor in Medina, Kumar Sir can guide students from basic level to advanced problem-solving.
For CBSE students, Physics papers have become more conceptual and application-based. Recent CBSE Physics papers included case-based questions, assertion-reason, competency-based questions, numerical problems, derivations, and diagram-based questions. Many students felt the paper was lengthy and tricky. That is why CBSE Physics Tutor in Medina is important for Class 11 and Class 12 students.
Physics Tutor in Medina Schools
Students from reputed schools in Medina may need extra Physics support. Kumar Physics Classes can help students from:
Physics Tutor in International Indian School Medina, Physics Tutor in Pakistan International School Medina, Physics Tutor in Bangladesh International School Medina, Physics Tutor in Al Manarat International School Medina, Physics Tutor in Dar Al Eiman School Medina, Physics Tutor in Al Aqeeq International School Medina, Physics Tutor in British Curriculum School Medina, Physics Tutor in American Curriculum School Medina, Physics Tutor in IB School Medina.
Physics Tutor in Medina Localities
Students living in different areas of Medina can join online Physics classes from home:
Physics Tutor in Al Haram Medina, Physics Tutor in Quba Medina, Physics Tutor in Al Aziziyah Medina, Physics Tutor in Al Aqeeq Medina, Physics Tutor in Al Khalidiyyah Medina, Physics Tutor in Al Jamiah Medina, Physics Tutor in Al Iskan Medina, Physics Tutor in Al Aridh Medina, Physics Tutor in Qurban Medina, Physics Tutor in Sultana Medina, Physics Tutor in Uhud Medina.
Important Keywords for Medina Students
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Why Kumar Physics Classes
Kumar Sir teaches Physics in a simple, logical, and exam-oriented way. He focuses on concept clarity, numerical practice, doubt solving, and previous-year questions. Students preparing for CBSE, NEET, IIT-JEE, AP, IB, IGCSE, A Level, and British Curriculum can benefit from online classes.
Physics becomes easy when the student understands the logic behind every formula. With the right teacher, a weak student can become confident, and a good student can become excellent.
Contact Kumar Physics Classes
Website: www.kumarphysicsclasses.com
Phone: +91-9958461445
Email: kumarsirphysics@gmail.com
Rutherford Scattering Experiment, Bohr Postulates and Photon
Rutherford scattering experiment was one of the most important experiments in atomic physics. In this experiment, Rutherford bombarded a very thin gold foil with fast-moving alpha particles. Alpha particles are positively charged particles. According to Thomson’s atomic model, positive charge was spread uniformly inside the atom, so alpha particles should pass almost straight through the foil. But the result was surprising.
Most alpha particles passed straight through the gold foil, which showed that most of the atom is empty space. Some alpha particles were deflected through small angles, which showed that positive charge is present inside the atom. A very few alpha particles were deflected through large angles or even came back, which proved that the positive charge and almost all mass of the atom are concentrated in a very small central region called the nucleus. From this experiment, Rutherford proposed the nuclear model of atom. According to this model, an atom has a small, dense, positively charged nucleus at the centre, and electrons revolve around it.
However, Rutherford’s model had one major problem. According to classical physics, a revolving electron should continuously lose energy and fall into the nucleus. But atoms are stable. To explain atomic stability and hydrogen spectrum, Bohr gave his postulates.
Bohr’s first postulate says that electrons revolve around the nucleus only in certain fixed circular orbits called stationary orbits. In these orbits, electrons do not radiate energy. Bohr’s second postulate says that only those orbits are allowed for which angular momentum of electron is quantized. It is written as mvr = nh/2pi, where n = 1, 2, 3, … . Bohr’s third postulate says that energy is emitted or absorbed only when an electron jumps from one orbit to another. If electron jumps from higher energy level to lower energy level, energy is emitted. If electron jumps from lower energy level to higher energy level, energy is absorbed. The energy of photon is given by E = hf = hc/lambda.
A photon is the smallest packet or quantum of electromagnetic radiation. Light is made up of photons. A photon has zero rest mass and travels with the speed of light in vacuum. The energy of a photon depends on its frequency. Higher frequency means higher energy. The formula for photon energy is E = hf, where h is Planck’s constant and f is frequency. Since c = f lambda, photon energy can also be written as E = hc/lambda. This means energy is inversely proportional to wavelength. So, violet light has more energy than red light because violet light has smaller wavelength.
Photons are very important in modern physics. They explain photoelectric effect, atomic spectra, X-rays, laser, and many other phenomena. In photoelectric effect, when photons of sufficient energy fall on a metal surface, electrons are emitted. This proves that light behaves like particles as well as waves. This dual nature of light is one of the foundations of quantum physics.
Limitations of Bohr’s Postulates
Bohr’s model is applicable only to hydrogen-like atoms, such as H, He+, Li2+, etc.
It cannot explain the spectra of multi-electron atoms.
It cannot explain the fine structure of spectral lines.
It cannot explain the Zeeman Effect, which is the splitting of spectral lines in a magnetic field.
It cannot explain the Stark Effect, which is the splitting of spectral lines in an electric field.
It does not explain the relative intensity of spectral lines.
It assumes fixed circular orbits, which is not correct according to modern quantum mechanics.
It violates Heisenberg’s uncertainty principle because it assumes definite position and definite velocity of electron at the same time.
It does not explain the wave nature of electrons.
It cannot explain chemical bonding and molecular spectra.
Definition of Impact Parameter
Impact parameter is the perpendicular distance between the initial direction of motion of the alpha particle and the centre of the nucleus, when the alpha particle is far away from the nucleus.
In Rutherford scattering experiment, impact parameter decides how close the alpha particle will pass near the nucleus and how much it will be deflected.
If impact parameter is small, deflection is large.
If impact parameter is large, deflection is small.