cade is studying rheo discolour leaf under a compound microscope.the eyepiece is mark 10x,the scanner is 5x,the low power objective is 40x.he opens the diaphragm allow light to pass through and be reflected by __(1)__.he moves the body tube up and down using the __(2)__.he views the specimen through the __(3)__with the scanner,and then changes to the low power objective by rotating the __(4)__.
a. mirror
b.eyepiece
c.coarse adjustment
d.revolving nosepiece​