The overall magnification of a compound microscope with an objective lens magnification of 5 and an eye piece magnification of 30 will be

M = 150 times

Explanation:

When two or more lens are used to form image then final magnification of the image is given by the product of magnification due to each lens

so here we can say

so here we know that

now the total magnification is given as

so total magnification is 150 times

the second one and the forth one are in the purple because they are opinions and the rest are in the yellow

explanation:

c) up is the direction the magnetic force is acting on the charge.