The effect of a given thrust is: (a) less on large area, more on small area (b) more on large area, small on small area (c) does not depend on area (d) maximum when it is inclined at 45° with the area

(a) less on large area, more on small area

Reason — The effect of thrust on a surface depends on the area of the surface on which it acts. The effect of a thrust is less on a large area, while it is more on a small area.