Eyes: A person can read the newspaper when it is held at 60 cm from his eyes. What should the focal length of his contact lenses be to allow him to read the newspaper comfortably at a distance of 30 cm?
A) -30 cm
B) 30 cm
C) -60 cm
D) 60 cm
E) 90 cm
Correct Answer:
Verified
Q82: Eyes: A man is nearsighted and cannot
Q83: Compound microscope: The distance between the object
Q84: Magnifying glass: A magnifying glass uses a
Q85: Magnifying glass: What is the angular magnification
Q86: Compound microscope: The eyepiece of a compound
Q88: Eyes: A myopic (nearsighted) dancer wears eyeglasses
Q89: Refracting telescope: You have available lenses of
Q90: Magnifying glass: What is the focal length
Q91: Eyes: A nearsighted physicist cannot see things
Q92: Compound microscope: The objective and the eyepiece
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents