(C) For a concave mirror, the magnification $m$ is given by $m = -v/u$. Given that the image is real and $n$ times the size of the object, the magnifi

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(C) For a concave mirror, the magnification $m$ is given by $m = -v/u$. Given that the image is real and $n$ times the size of the object, the magnification $m = -n$.Thus, $-n = -v/u$, which implies $v = nu$.Using the mirror formula: $1/f = 1/v + 1/u$.Substituting $v = nu$: $1/f = 1/(nu) + 1/u$.$1/f = (1 + n) / (nu)$.Rearranging for $u$: $u = f(n + 1) / n = [(n + 1) / n] f$.Therefore, the distance of the object from the mirror is $[(n + 1) / n] f$.

Class 12 Physics Ray Optics and Optical Instruments Spherical Mirror

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$A$ concave mirror of focal length $f$ forms an image $n$ times the size of the object. If the image is real, then the distance of the object from the mirror is .......

A
$(n - 1) f / n$
B
$[(n - 1) / n] f$
C
$[(n + 1) / n] f$
D
$(n + 1) f$

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Ray Optics and Optical Instruments

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Spherical Mirror

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$A$ concave mirror of focal length $f$ forms an image $n$ times the size of the object. If the image is real, then the distance of the object from the mirror is .......

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$A$ ray of light is incident on a convex mirror along a vector $3\hat i + 4\hat j + 12\hat k$. The normal to the convex mirror at the point of incidence is along $3\hat i + 4\hat j$. The unit vector along the reflected ray is:

In a car,a rear-view mirror having a radius of curvature $1.50 \, m$ forms a virtual image of a bus located $10.0 \, m$ from the mirror. The factor by which the mirror magnifies the size of the bus is close to

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