A hyperbolic mirror is used in some telescopes. Such a mirror has the property that light ray directed at one focus will be reflected to th eother focus as shown in the figure will below. Which of the following equations models the hyperbolic mirror's surface ?

1.A hyperbolic mirror is used in some telescopes. Such a mirror has the property that light ray directed at one focus will be reflected to th eother focus as shown in the figure will below. Which of the following equations models the hyperbolic mirror's surface ?

IUT 23-24IUT 15-16

ক

$\frac{x^{2}}{9} - \frac{7 y^{2}}{144} = 25$

খ

$\frac{x^{2}}{15} - \frac{7 y^{2}}{20} = 1$

গ

$\frac{x^{2}}{9} - \frac{7 y^{2}}{144} = 1$

ঘ

None

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