When an object is shot from the bottom of a long smooth inclined plane kept at an angle $60°$ with horizontal, it can travel a distance $x_1$ along the plane. But, when the inclination is decreased to $30°$ and the same object is shot with the same velocity, it can travel $x_2$ distance. Then $x_1:x_2$ will be

• A

  $1:\sqrt{2}$
• B

  $\sqrt{2}:1$
• Correct answer
  C

  $1:\sqrt{3}$
• D

  $1:2\sqrt{3}$

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