A beaker is filled in with water is accelerated by a m s⁻² in + x direction. The surface of water shall make an angle.

Select all that apply

• Option A

  tan⁻¹(a/g), tilted backward

• Option B

  tan⁻¹(a/g), tilted forward

• Option C

  cot⁻¹(g/a), tilted backward

• Option D

  cot⁻¹(g/a), tilted forward