Post-UTME Physics 2015 Objective — Question 4
Question 4 of 20 from the Post-UTME Screening (Post-UTME) Physics 2015 Objective paper, with the correct answer and a full explanation.
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The length of a pinhole camera is 30cm. An object 2cm high is placed 15cm from the pinhole. Calculate the height of the image produced.
- A. 4.00cmCorrect
- B. 1.00cm
- C. 22.50cm
- D. 1.25cm
Explanation
Image height = object height x (image distance/object distance) = 2 x (30/15) = 2 x 2 = 4.00cm.
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