Umm e mavia · 2026-09-06T10:18:34.646Z

📌 MEASUREMENTS & UNITS • 1 nm = 10⁻⁹ m • 1 μm = 10⁻⁶ m • 1 Å = 10⁻¹⁰ m • 1 kV = 10³ V • 1 mA = 10⁻³ A • 1 kΩ = 10³ Ω • 1 μF = 10⁻⁶ F • 1 HP = 746 W • 1 kWh = 3.6 × 10⁶ J

Umm e mavia · 2026-09-06T10:18:44.146Z

⚙️ MECHANICS • g = 10 m/s² • G = 6.67 × 10⁻¹¹ N·m²/kg²

Umm e mavia · 2026-09-06T10:18:54.765Z

WAVES & OPTICS • Speed of sound in air ≈ 340 m/s • Refractive index of air ≈ 1 • Refractive index of water ≈ 1.33 • Refractive index of glass ≈ 1.5 • Visible light = 400–700 nm

Umm e mavia · 2026-09-06T10:19:05.911Z

HEAT & THERMODYNAMICS • 0°C = 273 K • 1 cal = 4.2 J • Specific heat of water = 4200 J/kg·K • R = 8.31 J mol⁻¹ K⁻¹

Umm e mavia · 2026-09-06T10:19:15.030Z

ELECTRICITY • e = 1.6 × 10⁻¹⁹ C • k = 9 × 10⁹ N·m²/C² • ε₀ = 8.85 × 10⁻¹² C²/(N·m²) • μ₀ = 4π × 10⁻⁷ T·m/A

Umm e mavia · 2026-09-06T10:19:28.741Z

MODERN PHYSICS • c = 3 × 10⁸ m/s • h = 6.63 × 10⁻³⁴ J·s • 1 eV = 1.6 × 10⁻¹⁹ J • 1 MeV = 1.6 × 10⁻¹³ J • Electron mass = 9.1 × 10⁻³¹ kg • Proton mass = 1.67 × 10⁻²⁷ kg • Electron rest energy ≈ 0.511 MeV • 1 amu ≈ 931 MeV/c² • Nₐ = 6.02 × 10²³ mol⁻¹

Umm e mavia · 2026-09-06T10:20:14.053Z

Simran, mere paas one-page notes nahi hain, lekin ye hain. Hope ye help karein. 💗

Umm e mavia · 2026-09-06T10:23:15.417Z

Fundamental Concepts of Chemistry Avogadro’s number = 6.02 × 10²³ mol⁻¹ 1 mol gas at STP = 22.4 L 1 amu = 1.66 × 10⁻²⁷ kg

Umm e mavia · 2026-09-06T10:23:25.751Z