Given that SQ = 10cm and SP = 6cm, the refractive index of a block of glass shown above is

JAMB 1980

Given that SQ = 10cm and SP = 6cm, the refractive index of a block of glass shown above is

A. 0.30

B. 0.60

C. 1.67

D. 2.33

E. 2.36

Correct Answer: Option C

Explanation

R.I = Real depth / apparent depth = SQ/SP

R.I = 10/6

R.I = 1.67

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