Topics: Limitation of Senses Quiz
Which type of lens is used for the spectacles shown?
A. Concave lens
B. Convex lens
C. Cylindrical lens
D. None of the above
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Why blind people can read Braille easily using fingertips?
A. Fingertip has thin epidermis
B. Fingertip has no epidermis
C. Fingertip has thick epidermis
D. Fingertip has very few touch receptors