Four students A, B, C, and D looked through pipes of different shapes to see a candle flame as shown in the figure. Who will be able to see the candle flame clearly?
A
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B
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C
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D
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Solution
The correct option is D
The explanation for the correct answer
In the case of option D,
In this case, the tube is straight.
The light always follows a straight path. As a result, if the tubes are straighter, the light will be seen by the student.
The candle flame will be visible clearly.
The explanation for the incorrect answer
In the case of option A,
The tube in option (a) is not straight. As a result, we won't be able to properly observe the candle flame.
In the case of option B,
The tube in the given option is curved. As a result, we won't be able to properly observe the candle flame.
In the case of option C,
the tube in option (c) is bent. As a result, we won't be able to properly observe the candle flame.
