A converging lens has a focal length of 46cm. Locate the images for the followin

Question

A converging lens has a focal length of 46cm. Locate the images for the following object distances if they exist A: 46cm B: 11.50 cm A converging lens has a focal length of 46 cm. Locate the images for the following object detances if they exist. (Enter o in the q and A fields if no image exists.) (a) 46.00 cm Select all that apply to part (a). upright no Image D virtual (b) 11.50 am Select all that apply to part (b) real O no image inverted (c) 230.00 Select all that apply to part (c), D upright inverted

Explanation / Answer

Here ,

f = 46 cm

A) for do = 46 cm

m = infinity

as the object is at the focal point

the image is located at te infinity,

the image is real and inverted

B)

at do = 11.50 cm

1/f = 1/di + 1/do

1/46 = 1/11.50 + 1/di

di = -15.3 cm

q = -15.3 cm

m = - q/p

m = 15.3/11.50 = 1.33

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the image is virtual and inverted.

C)

p = 230 cm

1/46 = 1/230 + 1/q

q = 57.5 cm

m = - q/p = -57.5/230 = - 0.25

the image is real and inverted

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