Problem 23.52 Part A How far from 59.0-mm-focal-length lens must an object be pl

Question

Problem 23.52

Part A

How far from 59.0-mm-focal-length lens must an object be placed if its image is to be magnified 1.50× and be virtual? Follow the sign conventions.
[Hint: Consider real objects and virtual objects (formed by some other piece of optics).]

Express your answer to three significant figures and include the appropriate units.

SubmitMy AnswersGive Up

Part B

How far from 59.0-mm-focal-length lens must an object be placed if its image is to be magnified 1.50× and be real? Follow the sign conventions.
[Hint: Consider real objects and virtual objects (formed by some other piece of optics).]

Express your answer to three significant figures and include the appropriate units.

Explanation / Answer

A) for virtual image

image distance is di is negative

magnification m = -di/do = -1.5

di = 1.5*do

1/f = 1/do + 1/di

1/59 = 1/do - 1/1.5do

object distance is do = 19.67 cm

B) for real image image distance is di is positive

1/f = 1/do + 1/di

1/59 = 1/do + 1/1.5do

object distance is do =98.34 cm

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.