A projectile can have the same range $R$ for two angles of projection. If $t_1$ and $t_2$ be the times of flight in two cases, then their product

• A

  $t_1 t_2 \propto R^2$
• Correct answer
  B

  $t_1 t_2 \propto R$
• C

  $t_1 t_2 \propto \frac{1}{R}$
• D

  $t_1 t_2 \propto \frac{1}{R^2}$

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