Suppose you have a converging lens with focal length 24.5 cmand you place an obj

Question

Suppose you have a converging lens with focal length 24.5 cmand you place an object 38.91 cm from the lens. the locationof the image-66.2 cm

What is the magnification of the image- -1.7
If a diverging lens of focal length -72.0 cm is then placed 26.0 cmfrom the first lens on the opposite side of the lens from theobject, the location of the new image- 90.8 cm

What is the magnification due to the two-lens system?
I got -2.33 and it wad wrong. please help Suppose you have a converging lens with focal length 24.5 cmand you place an object 38.91 cm from the lens. the locationof the image-66.2 cm

What is the magnification of the image- -1.7
If a diverging lens of focal length -72.0 cm is then placed 26.0 cmfrom the first lens on the opposite side of the lens from theobject, the location of the new image- 90.8 cm

What is the magnification due to the two-lens system?
I got -2.33 and it wad wrong. please help

Explanation / Answer

The object distance for diverging lens isu=(-66.2+26)-40.2cm Its image distance is v=(-90.8+26)=-64.8cm Its magnification is m=v/u=-64.8/-40.2=1.6119 The total magnification is m=m1*m2=-1.7*1.6119=-2.740298 Hence we get by it.

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