Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsMedium2 minQB

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A ray of light is incident on a concave mirror. It is parallel to the principal axis and its height from principal axis is equal to the focal length of the mirror. The ratio of the distance of point B to the distance of the focus from the centre of curvature is ( AB is the reflected ray) :-

Options:

Answer:

Solution:

$sin i = \frac{f}{R} = \frac{1}{2}; i = 3 0^{\circ}$ Not a paraxial ray $CB = \frac{R}{2 c o s i} = \frac{f}{( 3 /2 )} = f (\frac{2}{3})$

$\frac{CB}{f} = \frac{2}{3}$

Stream:JEESubject:PhysicsTopic:Geometrical Optics

⏱ 2mℹ️ Source: QB

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