NEET Physics · Easy

Motion in a Plane: Projectile Motion Basics MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

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Projectile Motion BasicsEasyQuestion 5315

Question

At what pairs of angles does a projectile have the same range?
  1. A
    θ and 2θ
  2. B
    θ and 90°−θ
    Correct
  3. C
    θ and 180°−θ
  4. D
    θ and θ/2

Correct answer

θ and 90°−θ

Explanation

R = u²sin2θ/g. Since sin(180°−2θ) = sin2θ, both θ and (90°−θ) give the same range. E.g., 30° and 60°.