just provide the right answer Chapter 34, Problem 78 Your answer is partially co

Question

just provide the right answer

Chapter 34, Problem 78 Your answer is partially correct. Try again. An object stands on the central axis of a thin symmetric lens, at a distance of 10.0 cm from the lens. The magnification by the lens has an absolute value of |m| = 0.500, and the image is not inverted from the object. (a) What is the focal length of the lens, including sign if the value is negative? (b) Is the lens converging (please put in 1) or diverging (please put in 2)? (a) Number Units cm (b) 2

Explanation / Answer

given that object distance is u = 10 cm

magnification m= -v/u = 0.5

v = -0.5*u = -0.5*10 = -5 cm

focal length f=?

from (1/u)+(1/v) =(1/f)

(1/10)-(1/5) = (1/f)

f = -10 cm

answers

A) number -10 unts cm

B) diverging lens

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