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Saturday, June 13, 2026

Kepler's Laws of Planetary Motion: Law of Orbits, Areas and Periods

Saturday, June 13, 2026 0

Kepler's Laws of Planetary Motion: Law of Orbits, Areas and Periods Johannes Kepler proposed three laws to explain the motion of planet...

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Notes : Chapter 7 Gravitation - Introduction With FAQ and Quiz - Param Himalaya

Saturday, June 13, 2026 0

Chapter 7 – Gravitation: Section 7.1 Introduction Early Observations of Gravity From daily experience, we observe that objects are al...

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Notes : Energy Levels of Hydrogen Atom - Class 12 Physics Chapter 12 Atoms

Saturday, June 13, 2026 0

According to Bohr's theory, an electron in a hydrogen atom can occupy only certain discrete energy states. The energy of an electron in ...

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Expression For Radius , Velocity and Total Energy of $n_{th}$ orbit of Hydrogen Atom

Saturday, June 13, 2026 0

Bohr’s Theory of Hydrogen Atom :  Hydrogen atom consists of a nucleus having charge $+e$ and an electron having charge $-e$.  The electron i...

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Friday, June 12, 2026

Thursday, June 11, 2026