Physics MCQs

1)    Fluid friction is larger at

a)     Low speeds

b)    High speeds

c)     Very low speeds

d)    Very high speeds

2)    Acceleration of droplet is given by the relation

a)     a=g+6πηrv/m

b)    a=g-6πηv/m

c)     a=g+ 6πηr/mv

d)    a=g-6πηr/mv

3)    Equation of continuity is

a)     A₁V₁=A₂V₂

b)    A₁/V₁=A₂/V₂

c)     A₁/A₂=V₁/V₂

d)    Both b and c

Answers:

1.B

2.B

3.A