Lithium has a work function of 2.3ev. If 400nm light is incident on it, what is the maximum kinetic energy ? Chemistry Bohr Model of the Atom Calculations with wavelength and frequency
No. A comma precedes such as when what follows is an example of whatever went before. In this case, it is nonrestrictive. (For nonrestrictive constructions: use a comma.).
Before mentioned. 2. In contracts and pleadings it is usual and proper when it is desired to speak of a person or thing before mentioned, to designate them by the term said or aforesaid, or by some similar term, otherwise the latter description will be ill for want of certainty. 2 Lev. 207: Com. Dig.