Mathematics - Parabola Question with Solution | TestHub

MathematicsParabolaMiscellaneous/MixedMedium2 min

MathematicsMediumsingle choice

The number of focal chords of length $4/7$ in the parabola $7 y^{2} = 8 x$ is

Answer:

Solution:

since length of latus -rectum $= \frac{8}{7}$

Latus-rectum is the smallest focal chord

Hence focal chord of length $\frac{4}{7}$ does not exist.

Stream:JEESubject:MathematicsTopic:ParabolaSubtopic:Miscellaneous/Mixed

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