Multiple Choice
In the figure,the image is viewed on a screen and is 13.5 mm tall.What is the focal length of the lens? 
A) +14.6 cm
B) -14.6 cm
C) +20.4 cm
D) -89.3 cm
E) +124 cm
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q29: The focal lengths of the objective and
Q30: What is the uncorrected near point of
Q31: The focal lengths of the objective and
Q32: A concave spherical mirror with a radius
Q33: An object 1.25 cm tall is placed
Q35: A magnifying lens has a focal length
Q36: A thin double convex lens is to
Q37: A man is nearsighted and cannot see
Q38: A magnifying glass uses a converging lens
Q39: A person can read the newspaper when