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CGP EDU Academic Team
Published on: August 14, 2026
A focal chord of the parabola y 2 = 4ax makes an angle π π /3 with the axis of the parabola, Then the length of the focal chord is
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D
If a focal chord of a parabola makes an angle ‘ θ θ ’ with x-axis; then the length of the focal chord is 4a cosec 2 θ θ . Given θ θ = π π /3.
∴ ∴ Length of focal chord = 4a. cosec 2 π π /3 = 
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