Multiple Choice
A person uses a simple magnifying glass to study faces on an old school photograph.If the person has a near point of 25 cm and the magnifying glass (which is held close to the eye) has a focal length of 6 cm,then calculate the distance the photograph must be held in front of the magnifying glass.
A) 7.9 cm
B) 4.8 cm
C) 10.8 cm
D) 12.7 cm
E) none of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q91: The theoretical limit to the sharpness of
Q92: When a human eye that has a
Q93: An object is placed 200 cm from
Q94: The eyes of some people wearing glasses
Q95: A farsighted person uses glasses to read.The
Q97: Two parallel mirrors are a distance d
Q98: A diverging lens has a focal length
Q99: Your nearsighted instructor cannot focus clearly on
Q100: A real object in front of a
Q101: A cat is watching a goldfish in