RKM Academy

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📚RKM Academy | High Score Physics
Helping Class 8–12 Students CBSE/ICSE
Score 90%+ in Physics
Numerical • PYQs • Exam Strategy • Doubt Solving
Board-Focused Preparation (CBSE/ICSE)+JEE/NEET/FOUNDATION

DM “PHYSICS” for Demo Class

17/05/2026

16/05/2026

15/05/2026

✨ Why do Stars Twinkle but Planets Don’t? 🌍⭐

Stars are extremely far away, so they appear as tiny points of light. When their light passes through Earth’s moving atmosphere, it bends again and again, making stars look like they are twinkling. ✨

Planets, on the other hand, are closer to Earth and appear as small disks instead of points. Their light spreads out, so the atmospheric disturbances average out — making planets shine steadily. 🪐

🌌 In short:
⭐ Stars → Twinkle
🪐 Planets → Shine steadily

Science makes the night sky even more beautiful! 💫

14/05/2026

“Total bending of light by a prism depends on prism shape and the way light enters and leaves the prism. Light bending by prisms is useful because prisms can:
• change the direction of light,
• produce clear upright images,
• reduce light loss,
• separate colors,
• and make optical instruments compact and efficient.
Applications in real life
This equation is useful in:
• Spectrometers
• Optical instruments
• Binoculars
• Periscopes
• Dispersion of light
• Measuring refractive index of materials