Human Eye and C...

Match the following with correct response.
(1) Hypermetropia
(2) Presbyopia
(3) Myopia
(4) Astigmatism

(A) Elongation of eye ball
(B) Shortening of eye ball
(C) Cornea or the eye lens or both are not perfectly spherical
(D) Weakening of the ciliary muscles

Match the following with correct response.
(1) Hypermetropia
(2) Myopia
(3) Presbyopia
(4) Astigmatism

(A) Cylindrical lens
(B) Concave lens
(C) Convex lens
(D) Bifocal lens

Match the following with correct response.
(1) Atmospheric refraction
(2) Scattering of light
(3) Dispersion
(4) Tyndall effect

(A) Twinkling of star
(B) Rainbow
(C) Red colour of rising sun
(D) White colour of clouds

Match the following with correct response.
(1) Pupil
(2) Choroid
(3) Retina
(4) Sclerotic

(A) Iris, Pupil
(B) Cornea
(C) Ciliary muscles, lens
(D) Acts as a variable aperture in eye

Which of following phenomena is based on atmospheric refraction
A. Sun appears to rise 2 minutes before and 2 minutes later
B. Stars seen higher than they actually are
C. Rainbow
D. Blue colour of clear sky

In Hypermetropia
A. Curvature of the lens becomes less than normal
B. Elongation of the eye ball
C. Curvature of lens become more than normal
D. Shortening of the eye ball

Cone cells helps us to see-
A. In dark
B. In daytime
C. Colours
D. None

Rainbow is formed due to combination of ?
A. Refraction
B. Absorption
C. Dispersion
D. Total internal reflection

Which of the following statements are incorrect-
A. Person who wear spectacles cannot donate eyes
B. Presbyopia is corrected by placing a bifocal lens
C. Hypermetropia is also known as short sightedness
D. Red light has longest wavelength

Which of the following is mismatched
A. Iris- Regulates the amount of light
B. Ciliary muscles- Increases or decreases the size of lens
C. Optic nerves- Forms image of an object
D. Retina- Send signal to the brain to interpret the signal