JAMB Physics 2010 Objective — Question 30
Question 30 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2010 Objective paper, with the correct answer and a full explanation.
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30. An object is embedded in a block of ice, 10 cm below the plane surface. If the refractive index of the ice is 1.50, the apparent depth of the object below the surface is A. 6.77 cm B. 13.63 m C. 7.50cm D. 2.50cm
- A. 6.77 cm
- B. 13.63 m
- C. 7.50cmCorrect
- D. 2.50cm
Explanation
Refractive index = Real depth/Apparent depth. 1.5 = 10cm/Apparent depth. Apparent depth = 10/1.5 = 6.67cm (closest matching option per the original worked solution is 6.67cm).
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