NEET2019Physics-Projectile Motion
NEET 2019 Physics Inclined Plane MCQ Question
Type: MCQ-numerical-Medium-Class 11
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 x₁ along the plane. But when the inclination is decreased to 30° and the same object is shot with the same velocity, it can travel x₂ distance. Then x₁ : x₂ will be:
A
1 : √3
B
1 : 2√3
C
1 : √2
D
√2 : 1
Correct Answer
Option A
Detailed Explanation
The range on an inclined plane is given by R = (u²/g) * (sin2θ). For θ = 60° and 30°, the ranges are proportional to sin120° and sin60°, respectively. The ratio is sin120°/sin60° = √3/1.
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