What is short-sightedness? List two causes for development of short-sightedness. Describe with a...

Channel:
PW Solutions
Subscribers:
449,000
Published on ● Video Link: https://www.youtube.com/watch?v=bFoHagTwhJI


Duration: 5:21
1 views
0

What is short-sightedness? List two causes for development of short-sightedness. Describe with a ray diagram, how this defect may be corrected using spectacles.
Or
-What is myopia? State the two causes of myopia - with a labelled ray diagram show
(i) the eye defect myopia,
(ii) correction of myopia using lens.
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-07-15Hypermetropia and myopia can be corrected respectively by a. Plano-convex and Concave lens b. Co...
2023-07-15A person is able to see distant object distinctly but cannot see nearby objects clearly this def...
2023-07-15Far and near points of a young person normal eye respectively are a. Infinity and 0 b. Infinity ...
2023-07-15Bi-focal lens are required to correct a. Myopia b. Presbyopia c. Astigmatism d. Coma
2023-07-15The nature of image formed on the retina of the human eye is a. Virtual and inverted b. Real and...
2023-07-15One cannot see through the fog, because a. It is an opaque object b. Light suffers total reflect...
2023-07-15The size of the pupil is controlled by the muscular diaphragm called. a. Iris b. Ciliary muscles...
2023-07-15The defective eye of a person has near point 0.5 \( \mathrm{m} \) and far point \( 3 \mathrm{~m}...
2023-07-15Refraction of light by the earths atmosphere due ts variation in air density is called a. Atmosp...
2023-07-15The clear sky appears to be blue because a. Blue light gets reflected in the atmosphere. b. Ultr...
2023-07-15What is short-sightedness? List two causes for development of short-sightedness. Describe with a...
2023-07-15Having two eyes facilitates in A : Bringing three-dimensional view B : Increasing the field of v...
2023-07-15Write different parts of eye and explain their functions. Also explain, how an image of an objec...
2023-07-15The deflection of light by minute particles and molecules of the atmosphere in all direction is ...
2023-07-15The power of the lens used for the correction of a myopic eye whose far point is \( 75.5 \mathrm...
2023-07-15When we enter a dim-lit room from a bright light, we are unable to see the object in the room fo...
2023-07-15The near point of a hypermetropic eye is \( 1 \mathrm{~m} \). What is the power of the lens requ...
2023-07-15Power of a lens (in diopter) used for the correction of a hypermetropic eye whose near point is ...
2023-07-15A person can read a newspaper from a distance of \( 50 \mathrm{~cm} \). Find the power of the le...
2023-07-15The far point of a myopic person is \( 80 \mathrm{~cm} \) in front of the eye. What is the natur...
2023-07-15At a distances between \( 50 \mathrm{~cm} \) and \( 300 \mathrm{~cm} \) from his eye, a person i...