two velocities 10ms-1 and 15ms-1 are inclined at an angle 60° to each other. obtain the resultant velocity. by graphical method​

Why do electron microscopes have higher resolving power than light microscopes?

Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference

What are similarities and differences of reflection, refraction, diffraction and absorption?