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| Linear Magnification of Spherical Mirror |
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| Linear magnification is ratio of the size of the image to the size of the object. |
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| We know, |
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| For Real Image |
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| using sign convention |
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| AlBl = -h2 ; AB = +h1 |
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| PBl = -V, PB = - u |
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| For Virtual Image |
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| AlBl = +h2 ; AB = h1 |
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| PBl = +V ; PB = -u |
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| AlBl = +h2 ; AB = +h1 |
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| PBl = +v ; PB = -u |
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| Note: |
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| If m>1, image is enlarged. |
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| If m <1, image is diminished. |
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| If m is +ve , image is erect and virtual. |
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| If m is -ve, image is inverted and real. |
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| Other formulae for magnification |
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| or |
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