Physics Review QuestionUnit:
OpticsYear:
1994 Question#:
93Question:
A student placed an object at various distances (d_{0}) from a converging lens. The corresponding image distance (d_{i}) was measured and recorded in the data table below.What is the focal length of the lens? (1
) 0.10 m(2
) 0.15 m(3
) 0.20 m(4
) 0.30 mWhat is this question really asking?
Explanation by: Steven B [ Return to question menu
]Answer 1
0.10 m CORRECT 0.10 m is correct because of the formula: Choose any pair of numbers from the table and plug them into the equation. For example: The answer you get is 0.10 m. return to top
Answer 2
0.15 m INCORRECT 0.15 m is incorrect return to top
Answer 3
0.20 m INCORRECT return to top
Answer 4
0.30 m INCORRECT 0.30 m is incorrect return to top
What's this question really asking?
return to top The question is asking if you know how to use the thin lens equation and solve for the focal length. |

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