Why is wavelength the main limiting factor on limit of resolution in light microscopy?

An object has a weight of 500 on earth what is the mass of this object

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?

Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow