Two stones are projected from the top of a cliff $\mathrm{h}$ metres high, with the same speed $\mathrm{u}$, so as to hit the ground at the same spot. If one of the stones is projected at an angle $\theta$ to the horizontal then the $\theta$ equals

• Correct answer
  A

  $\mathrm{u} \sqrt{\frac{2}{\mathrm{gh}}}$
• B

  $\sqrt{\frac{2 \mathrm{u}}{\mathrm{gh}}}$
• C

  $2 \mathrm{~g} \sqrt{\frac{\mathrm{u}}{\mathrm{h}}}$
• D

  $2 \mathrm{~h} \sqrt{\frac{\mathrm{u}}{\mathrm{g}}}$

Hence, the correct answer is option: 'A'.