A large open tank has a small orifice at depth h below the free surface. Neglect viscosity. Which statements are correct?

Select all that apply

• Option A

  Efflux speed is √(2gh)

• Option B

  The result follows from Bernoulli between the free surface and orifice

• Option C

  If the tank is in free fall, the efflux relative to the tank tends to vanish

• Option D

  For the same h, increasing liquid density increases ideal efflux speed