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The image formed by spherical mirror is real, inverted and is of magnification -2.If the image is at a distance of 30 cm from the mirror,where is the object placed?Find the focal length of the mirror.List 2 characteristics of the image formed if the object is moved 10 cm towards the mirror?(PLs ans during live chat URGENTLY)
Asked by nisha_vini29 | 16 Mar, 2017, 04:24: PM
answered-by-expert Expert Answer

Hi,

begin mathsize 14px style Step space straight I colon Use space the space magnification space formula colon space straight m space equals space fraction numerator negative straight v over denominator straight u end fraction space and space find space out space the space object space distance. Step space II colon Use space mirror space formula space 1 over straight f equals 1 over straight v plus 1 over straight u space and space find space the space focal space length. S tep space III colon Case space given space that space object space distance space changes. Use space the space given space straight u space and space calculated space straight f space in space the space mirror space formula space and space find space out space the space new space image space distance space apostrophe straight v apostrophe Depending space on space the space sign space of space straight u space and space straight v comma space the space nature space of space the space image space formed space can space be space mentioned. end style

Answered by | 16 Mar, 2017, 05:29: PM

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