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Variation Lens 1 Lens 2 1 Converging Converging p 1 < |f 1 | 2 Converging Conver

ID: 1514941 • Letter: V

Question

Variation

Lens 1

Lens 2

1

Converging

Converging

p1 < |f1|

2

Converging

Converging

p1 > |f1|

3

Diverging

Converging

p1 < |f1|

4

Diverging

Converging

p1 >|f1|

5

Diverging

Diverging

p1 < |f1|

6

Diverging

Diverging

p1 > |f1|

For which variations can we tell, without calculation, whether the final image (that due to lens 2) is to the left or right of lens 2 and whether it has the same orientation as the object?

Variation

Lens 1

Lens 2

1

Converging

Converging

p1 < |f1|

2

Converging

Converging

p1 > |f1|

3

Diverging

Converging

p1 < |f1|

4

Diverging

Converging

p1 >|f1|

5

Diverging

Diverging

p1 < |f1|

6

Diverging

Diverging

p1 > |f1|

Explanation / Answer

Variation 2
Object is farther then focal length of lens1, so, real image will be formed to the right of lens1 and from that again an image will be fromed by lens 2