Answer this... Plzzz
Attachments:
Answers
Answered by
1
Answer:
presbyopia:- it is an old age disease. at old age the ciliary muscles loose their elasticity and cannot change the focal length of eye lens effectively.
astigmatism:- it is the defect of eye which occurs when cornea is not spherical in shape
scattering of light:- it is a optical phenomenon in which the particles of medium deviate direction of light
accomodation :- modification of focal length of eye lens by ciliary muscles to see objects at all possible direction
atmospheric refraction:- refraction of light at different levels of atmosphere is called atmospheric refraction
Similar questions