When a person enters in a dark room from strong light area, he is not able to see clearly for some time. Later he gradually begins to see things. This is because

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Q: 30 (RAS/2011)
When a person enters in a dark room from strong light area, he is not able to see clearly for some time. Later he gradually begins to see things. This is because—

question_subject: 

Science

question_exam: 

RAS

stats: 

0,9,4,9,3,1,0

keywords: 

{'dark room': [0, 0, 0, 1], 'darkness': [0, 0, 0, 4], 'pupil': [2, 0, 0, 1], 'strong light area': [0, 0, 0, 1], 'eyes': [16, 0, 2, 5], 'lens': [0, 0, 0, 1], 'rhodopsins': [0, 0, 0, 1], 'bleaching': [0, 0, 0, 1], 'focal length': [1, 0, 5, 7]}