distance traveled by the Laser light and also incidence

wave length

Weaver's beams were two and one half inches in diameter.

It would take 100000 years.

1. Find out how the strength of the beam depends on its height, and on its width.

2. Derive the corresponding expression that relates the strength of the beam to one of the variables, for example its width.

3. Use calculus to maximize this expression. That basically means taking the derivative of the expression in step 2., then equating it to zero.

Tee beam, L beam & Inverted beam

tayyab..

there are many other types of beam such as cantilever beam , simply supported beam . t beam . knife edge beam and many more