An optician's test card is fixed at 90 cm behind the eyes of a patient who looks into a plane
mirror which is at 300 cm in front of him as shown in the
diagram. If the distance of eye from the image of card is (m x 230). Then what is the value of
m?
please answer correct
Answers
Answer:
300
Explanation:
Even though you have good vision, you should still have your eyes checked once every one to two years. During an eye exam your eye doctor is not just checking how well you see, but your risk for eye diseases, like glaucoma and cataracts. If you have medical conditions of any kind, these could also impact your vision and eye health making a routine eye exam an important part of your health and wellness.
Getting routine eye exams can help maintain your eye health. Be sure to talk to your eye doctor if you currently have glasses or contact lenses or are experiencing any vision problems.
A family history of eye problems and certain health conditions may lead to more frequent visits, but it’s important to be checked regularly even if you aren’t at risk.
Before making any visit to the eye doctor, review the details of your vision plan so you know what’s covered. Depending on your health insurance, a routine eye exam may be covered.
Answer:
for a plane mirror the distance of object and image is same
hope this helps
