The second most common type of the condition is known as ocular albinism, in which only the eyes lack color; skin and hair are normal. There are five forms of ocular albinism; some types cause more problems-especially eye problems-than others.
Electric Field at the Center of a Semicircle. electric field of a semicircle on a point The rectangular part of the field is 100 yds long and the diameter of each semicircle is 44 yds Electric magnitude of semicircle
The magnitude of the field is proportional to the number of field-lines per unit area passing through a small surface normal to the lines. Thus, field-lines determine the magnitude, as well as the direction, of the electric field. In particular, the field is strong at points where the field-lines are closely spaced, and weak at points where they are far apart. The electric field-lines associated with a positive point charge are a set of unbroken, evenly spaced (in solid angle) straight-lines which radiate from the charge--see Fig. 9.