Post-UTME Physics 2019 Objective — Question 13
Question 13 of 20 from the Post-UTME Screening (Post-UTME) Physics 2019 Objective paper, with the correct answer and a full explanation.
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A pin at the bottom of a beaker filled with water appears to be at a depth of 9 cm when viewed vertically from above. If the refractive index of water is 4/3, calculate the real depth of the water in the beaker.
- A. 6.75cm
- B. 10.33cm
- C. 12.00cmCorrect
- D. 15.75cm
Explanation
Real depth = apparent depth x refractive index = 9 x 4/3 = 12.00cm.
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