Physics · Oct / Nov 2021 · Paper 12 · Question 26
Light rays are deviated by a prism. The deviation angle d is measured for light rays of different frequency, including blue light and red light. Which graph of d against frequency is correct?
- Agraph of d against frequency: d decreasing as frequency increases from blue to red
- Bgraph of d against frequency: d increasing as frequency increases from blue to red
- Cgraph of d against frequency: d decreasing as frequency increases from red to blue
- Dgraph of d against frequency: d increasing as frequency increases from red to blue
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Correct answer: D. graph of d against frequency: d increasing as frequency increases from red to blue
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