2. If you place an object very far from themirror, what is the location of the i

Question

2. If you place an object very far from themirror, what is the location of the image?Answer: : 37.3cm
3. What is the magnification of theimage?Answer: :0

5. What is the magnification of theimage?Answer: :-1.7

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NEED ONLY HELP WITH QUESTIONS 6and 7 thanks

6. If a diverging lens of focal length -67.0cm is then placed 27.0 cm from the first lens on the opposite sideof the lens from the object, what is the location of the newimage?

Answer:   ?????

Hint: If you know themagnification of the first lens and the magnification of the secondlens, you are just about there.
7. What is the magnification due to thetwo-lens system?

Answer: ????

NEED ONLY HELP WITH QUESTIONS 6and 7 thanks

Explanation / Answer

(6)                 Here Object distance is :   81.25 -27.0   cm                                                                u`   = 54.25   cm                           Focal length (f ` ) = - 67.0 cm                We have :                              1 / f ` = 1/ u` + 1/ v`                   or        1/ v`  =   1/ f ` - 1 / u`                                         = - 1 / 67.0 - 1 / 54.25               New Image location is :                                  v` =   - 29.977   cm                                        ˜  - 30 cm (7)               Magnification (M `) = - v` / u`                                              = 30.0 / 54.25                                               = 0.553 Hope this helps u!

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