Question

1) A man who can see well from a distance but not close, can read clearly...

1) A man who can see well from a distance but not close, can read clearly without glasses at a distance of not less than 75 cm. If you wear 2 diopter power glasses, what is your new near point?
Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Here,
Man's near point
Least distance of distinct vision
Power of the lens

According lens makers formula:

Therefore, new near point will be 50.0 cm.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Without glasses a man can see objects clearly if they are no closer than 1.8 meters...
Without glasses a man can see objects clearly if they are no closer than 1.8 meters from his eyes. He walks into London Drugs and tries out some glasses there that have a power of +2.3 diopters. If he wears these glasses 1cm from his eyes, what is the shortest distance from his eyes at which he can see objects clearly?
Without glasses, your Uncle Albert can see things clearly only if they are between 20 cm...
Without glasses, your Uncle Albert can see things clearly only if they are between 20 cm and 180 cm from his eyes. Part A What power eyeglass lens will correct your uncle's myopia? Assume the lenses will sit 2.0 cm from his eyes. Part B What is your uncle's near point when wearing these glasses?
People who do very detailed work close up, such as jewellers, often can see objects clearly...
People who do very detailed work close up, such as jewellers, often can see objects clearly at much closer distance than the normal 25 cm. Part (a) What is the power in D of the eyes of a woman who can see an object clearly at a distance of only 7.5 cm? Assume the distance to her retina from the lens in her eye is 2.00 cm.      Part (b) What is the size in mm of an image of...
Without glasses, your Uncle Albert can see things clearly only if they are between 20 cm...
Without glasses, your Uncle Albert can see things clearly only if they are between 20 cm and 160 cm from his eyes. Part A What power eyeglass lens will correct your uncle's myopia? Assume the lenses will sit 2.0 cm from his eyes. Express your answer using two significant figures. I got the answer and it is refractive power = -0.63 diopters but I cant figure out part B Part B What is your uncle's near point when wearing these...
A person is both myopic and hyperopic. He can see objects clearly only if they are...
A person is both myopic and hyperopic. He can see objects clearly only if they are between 31.3 cm c m and 80.0 cm c m . Part A What power of contact lens is required to see a distant object clearly? Express your answer using three significant figures. Part B What power of contact lens is required to read at the normal near point of 25 cm?
Contact lenses are placed on the eyeball, so the distance from the eye to an object...
Contact lenses are placed on the eyeball, so the distance from the eye to an object (or an image) is the same as the distance from the lens to the object (or the image). If a person can see distant objects well, but has a nearpoint of 53.0 cm instead of the usual 25.0 cm, what power of contact lenses are needed (in diopters)? The same person now wants to wear glasses instead; they are 1.90 cm in front of...
Suppose that a person's lenses have a refractive power of 2.75 diopters that allow the person...
Suppose that a person's lenses have a refractive power of 2.75 diopters that allow the person to focus on an object that is 25 cm from the eye. The glasses are 2.00 cm in front of the eyes. a) Is the close point of this person greater than or less than 57.0 cm? What is the distance from the near point when the glasses have a refractive power of 2.53 diopters? Explain b) find the close point of this person.
In order to see objects at different distances clearly, a person's eyes must be able to...
In order to see objects at different distances clearly, a person's eyes must be able to adjust the focal length of their lenses. If person can't achieve the full range of focal lengths, they will require corrective lenses to have "normal" vision. The corrective lenses in glasses usually sit about 2cm from a person's eyes. Part A: Someone who is nearsighted cannot see clear images of objects far away. One such person is unable to see things further than 5...
The contacts worn by a farsighted person allow her to see objects clearly that are as...
The contacts worn by a farsighted person allow her to see objects clearly that are as close as 25.0 cm, even though her uncorrected near point is 81.0 cm from her eyes. When she is looking at a poster, the contacts form an image of the poster at a distance of 237 cm from her eyes. (a) How far away is the poster actually located? (b) If the poster is 0.400 m tall, how tall is the image formed by...
The contacts worn by a farsighted person allow her to see objects clearly that are as...
The contacts worn by a farsighted person allow her to see objects clearly that are as close as 25.0 cm, even though her uncorrected near point is 91.0 cm from her eyes. When she is looking at a poster, the contacts form an image of the poster at a distance of 208 cm from her eyes. (a) How far away is the poster actually located? (b) If the poster is 0.330 m tall, how tall is the image formed by...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT