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प्रश्न
An object is placed in front of a concave mirror of focal length 12 cm. If distance of the object from the pole of the mirror is 8 cm, then use mirror formula to determine the position of the image formed. Draw a labelled ray diagram to justify your answer in this case.
आकृति
संख्यात्मक
उत्तर
Mirror formula:
`1/f = 1/v - 1/u`
Given: `f` = − 12 cm and `u` = 8 cm
`1/v = 1/f - 1/u`
`1/v = (-2)/24 - 3/24`
`1/v = (-5)/24`
`v = (-24)/5`
= − 4.8 cm
The negative sign indicates that the image is formed on the same side as that object.
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