Define -
Pole

Define the following for a spherical mirror : (i) principal axis, (ii) radius of curvature, (iii) principal focus, (iv) center of curvature, (v) aperture, (vi) pole.

Define work.

Define angel of dip at a place. What will be the value of the angle at the poles and the equator of the earth? Aat what place on the earth's surface will the horozontal component of the eath's magnetic field and is verticle component ne equal?

Define electric currents and define its SI units?

Define amniocentesis.

Define epitope.

Define Adsorbent

Define : suspension

Define linkage ?