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CSS :: Vision and Hearing Physiology


1.  Which of the following organs is involved to help us feel the earthquake:
A. Eye B. Skin of sole
C. Ear D. None of these

2.  During night the slow intensity of light is detected by:
A. Cones B. Rods
C. Both (a) & (b) D. Crystalline lens

3.  Night blindness is caused by:
A. Hypermetropia B. Myopia
C. Defective cornea D. Deficiency of rhodopsin

4.  With the change in the intensity of light from one to one hundred the response of our eye will be increased by:
A. 0.01 B. 2
C. 10 D. 100

5.  Least distance vision for a person of hypermetropia is:
A. 25 cms B. Less than 25 cms
C. More than 25 cms D. Infinity

6.  The nerve centre for sight is located in:
A. Thalamus B. Cerebral cortex
C. Both (a) & (b) D. None of these

7.  On land frogs are:
A. Hypermetropic B. Myopic
C. Normal sighted D. None of these

8.  In water the frogs are:
A. Hypermetropic B. Myopic
C. Normal sighted D. None of these

9.  Frog's eyes are capable of:
A. Maximum accommodation B. Slight accommodation
C. No accommodation D. None of these

10.  A slight accommodation in frog's eyes can be brought about by:
A. Protractor lentis muscles B. Retractor lentis muscles
C. Ciliary muscles D. None of these




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