EC Mastering Physic Hw14 Google Chrome Secure https://session.masteringphysics.c

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EC Mastering Physic Hw14 Google Chrome Secure https://session.masteringphysics.com/myct/item View? offset next&assignmentProblemID; 78249365 Phys 2200 HW14 Exercise 34.43 Exercise 34.43 Part A Two thin lenses with a focal length of magnitude How far from this first lens is the final image formed? 15.0 cm the first diverging and the second converging, are located 11.3 cm apart. An object 3.50 mm tall is placed 25.0 cm to the left of the Ardo first (diverging) lens. 14.137 cm, Submit My Answers Give Up Incorrect, Try Again; 5 attempts remaining Part B s the final image real or virtual? real Submit My Answers Give Up Correct Part C What is the height of the final image? Submit My Answers Give Up mdm, Help l Close Resources v previous 5 of 10 next

Explanation / Answer

A) using,    1/f =1/v -1/u

First image

f=-15 cm

u= - 25 cm

-1/15 = 1/v - (-1/25)

or   v= -9.375 cm from diverging lens to the left

final image

u= -(9.375 + 11.3) = - 20.68

1/15= 1/v -(-1/20.68)

or v = 54.61 cm     from converging lens to the right

distance of final image from first lens = 54.61 + 11.3 = 65.91 cm

B) final image is real

C) first magnification, m1 = -9.375/(-25) = 0.375

height of first image h1 = 0.375*3.5 mm =1.3125 mm

second magnification, m2 = 54.61/(-20.68) = - 2.64

height of second image h2 = 1.3125*( - 2.64) mm = - 3.465 mm

-ve shows inverted

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