light is incident from infinity on a concave mirror of 20 cm focal length . find image distance.
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Image will be formed on focus i.e. at 20 cm from mirror.
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The image distance will be 20cm too.
Because when the object is placed on infinity then the image is always formed on the focus.
Hope this helps.
Please mark as BRANLIEST.
Because when the object is placed on infinity then the image is always formed on the focus.
Hope this helps.
Please mark as BRANLIEST.
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