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⚛️ Physics World | Anup Rawat 🌌
📘 Making Physics Simple, Smart & Interesting
🚀 Notes • MCQs • Concepts • Numericals
🧠 Learn Physics from Basics to Advanced
✨ Explore the Laws of Nature & Universe
🎯 For School, Boards & Competitive Exams

Electrochemical cell
27/08/2026

Electrochemical cell

26/08/2026

Momentum vs force

Why Do Stars Twinkle? 🌟Stars appear to twinkle due to atmospheric refraction of their light.📌 Key Points:🔹 Starlight pas...
26/08/2026

Why Do Stars Twinkle? 🌟

Stars appear to twinkle due to atmospheric refraction of their light.

📌 Key Points:
🔹 Starlight passes through layers of Earth’s atmosphere 🌍
🔹 Different layers have different refractive indices
🔹 Continuous changes in air density cause irregular refraction
🔹 The apparent brightness and position of the star keep changing

💡 Remember:
Atmospheric Refraction → Changing Brightness → Twinkling ⭐

📚 Class 10 Physics | Light | NCERT

Physics in daily life
26/08/2026

Physics in daily life

Types of Work 🔬In physics, work can be classified according to the direction of force and displacement.🔹 Positive Work →...
26/08/2026

Types of Work 🔬

In physics, work can be classified according to the direction of force and displacement.

🔹 Positive Work → Force & displacement in same direction
W > 0

🔹 Negative Work → Force & displacement in opposite directions
W < 0

🔹 Zero Work → No displacement or force perpendicular to displacement
W = 0

💡 Remember:
Same → Positive | Opposite → Negative | Perpendicular → Zero

📚 Class 11 Physics | Work, Energy & Power | NCERT

Plane Mirror 🔦A plane mirror has a flat reflecting surface and forms an image by reflection of light.📌 Key Points:🔹 Imag...
25/08/2026

Plane Mirror 🔦

A plane mirror has a flat reflecting surface and forms an image by reflection of light.

📌 Key Points:
🔹 Image is virtual & erect
🔹 Image is same size as object
🔹 Laterally inverted
🔹 Image forms at the same distance behind the mirror as the object is in front
🔹 Magnification (m) = +1

💡 Remember:
Plane Mirror → Virtual + Erect + Same Size + Laterally Inverted

Kinetic vs Potential Energy 🔋🔹 Kinetic Energy → Energy due to motionKE = ½mv²🔹 Potential Energy → Energy due to position...
25/08/2026

Kinetic vs Potential Energy 🔋

🔹 Kinetic Energy → Energy due to motion
KE = ½mv²

🔹 Potential Energy → Energy due to position or configuration
PE = mgh

💡 Remember:
Motion → Kinetic 🏃
Position → Potential 🏔️

PE=mgh

📚 Physics | Class 9 | Work & Energy | NCERT

Power study notes
25/08/2026

Power study notes

Electric DipoleAn electric dipole consists of two equal and opposite charges (+q and −q) separated by a small distance.📌...
24/08/2026

Electric Dipole
An electric dipole consists of two equal and opposite charges (+q and −q) separated by a small distance.

📌 Key Points:
🔹 Charges → +q and −q
🔹 Separation → 2a
🔹 Dipole moment → p = q × 2a
🔹 Direction of p → From −q to +q
🔹 SI Unit → C·m

💡 Remember:
Electric Dipole = Equal & Opposite Charges ⚡

📚 Class 12 Physics | Electric Charges & Fields | NCERT | NEET

Zeroth law of thermodynamics
24/08/2026

Zeroth law of thermodynamics

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