Chapter 22 – Photometry, luminosity

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1) SI system of Units. Learn the 7 major units corresponding to the 7 Fundamental Quantities in the physical world. Length Mass Time Electric Current...

This course gives you interesting images and animations to explain clearly a number of things :- 1) Displacement versus Distance: what’s the difference 2) Types...

1) Force as a vector . See Archimedes principle and Forces acting on a ball submerged inside water 2) Gravitational Forces , such as between...

This course gives a strong foundation to clearly understand Newton’s 3 Laws of Motion , and to apply them in practical problems. 1) 1st Law...