The figure shows a combination of two lenses Find the position of tie final image of the 1

Physics Dec 28, 2020

The figure shows a combination of two lenses Find the position of tie final image of the 1.0 cm tall object Express your answer using two significant figures. Find the size of the final image of the 1.0-cm-tall object:. Express your answer using two significant figures. Find the orientation of the final image of the 1.0-cm-tall object

Expert Solution

apply for converging lens 1/f = 1/u1 + 1/v1

1/v1 = 1/5- 1/4

v1 = -20 cm (image distance for the first lense)

f2 = - 8 cm

u2 = -20-12 = -32 cm (object distance for the second lense)

1/u2 + 1/v2 = 1/f2

1/v2 = 1/f2 - 1/u2

1/v2 = -1/8 - 1/32

v2 = -6.4 cm

from object 12-6.4 +4 9.6 cm

B) magnification, m = (-v1/u1)*(-v2/u2)

= (20/4)*(6.4/32)

= 1

imahe height = m*object height

= 1*1

= 1 cm

C) erect

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