An object with a height of 2.59 cm is placed 35.4 mm to the left of a lens with

Question

An object with a height of 2.59 cm is placed 35.4 mm to the left of a lens with a focal length of 32.1 mm .

Part A

Where is the image located?

m

Part B

Where is the image located?

The image is located to the left of the lens.

Part C

What is the height of the image?

cm

Item 2 An object with a height of 2.59 cm is placed 35.4 mm to the left of a lens with a focal length of 32.1 Part A Where is the image located? Submit My Answers Give Up Part B Where is the image located? o The image is located to the right of the lens O The image is located to the left of the lens Submit My Answers Give Up Part C What is the height of the image?

Explanation / Answer

(a)

1/f = 1/do + 1/di

1/32.1 = 1/35.4 + 1/di

1/di = 1/32.1 - 1/35.4

di = 344.34 mm
  
di = 0.344 m

(b) to the right of the image

(c)
m = -v/u

= -344.34/35.4

= -9.7271

image height = m*object height

= 9.7271*2.59

= 25 cm or 0.0.25 m

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