Loading...

Lesson: Chapter - 19

Key Formulas

Time Dilation

Length Contraction

Addition of Relativistic Velocities

Relativistic Mass

Relativistic Kinetic Energy

Mass-Energy Equivalence

E = m0C2

Electron-Volts Related to Joules

1eV = 1.6 × 10-19J

Energy as a function of frequency

E = hƒ

Kinetic Energy of Liberated Photoelectron

KE = hƒ - F

Radius of Electron Orbit

Electron Potential Energy in a Hydrogen Atom

U = 1/n2(-13.6 eV)

De Broglie Wavelength

? = h/mv

De Broglie Wavelength for Electron

n? = 2?r

Heisenberg Uncertainty Principle

?x?p = h/4p

Atomic Mass Units in Kilograms

l amu = 1.6605 × 10-27 kg

Rate of Radioactive Decay

A = A0e>-?t
N = N
0e>

Half-Life of Radioactive Material

T1/2 = ln2/?

Back Next

Next to display next topic in the chapter.

Practice Questions

Video Lessons and 10 Fully Explained Grand Tests

Large number of solved practice MCQ with explanations. Video Lessons and 10 Fully explained Grand/Full Tests.