A tower stand vertically on the ground from a point on the ground 100 meters away from the foot of the tower the angle of elevation of the top of the tower is 45 degree . find the height of the tower
write the characteristics of the image formed by a convex lens of focal length 25cm when the object is kept on the principal axis at a distance of 50cm
From the given statement select the correct one that is related to glaucoma (a) affect conjunctiva (b) can be rectified through laser surgery (c) eye lens becomes opaque (d) lack of victamin -a
a laser is used to open the drainage system within the eye . This allows anterior chamber of eye to result the smooth and regular flow of aqueous humour. Thus the pressure is reduced