Sainik School Entrance Exam 2020 Solved Paper

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Question : 83 of 150

Marks: +1, -0

The impression of an image does not vanish immediately from the retina. It persists for :-

$(1 /$ $60)^{\th }$ of a second
$(1 /$ $12)^{\th}$ of a second
$(1 /$ $6)^{\th}$ of a second
$(1 /$ $16)^{\th}$ of a second

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