GCSE Physics 2020-2022 OCR Gateway: What happens if Bob has a Blue Filter, and looks at a:
1. A Blue Case
2. a Red Hat

Question

What happens if Bob has a Blue Filter, and looks at a:
1. A Blue Case
2. a Red Hat

go kys · Accepted Answer

1. Since a Blue Filter allows the Blue Wavelength, and the Case is Blue, This means the Case will still be Blue because its still allowing the Reflected Blue to hit the Eyes
2. For the Red Hat, the Reflected Red Wavelength would be Blocked [Absorbed] by the Filter, making it look Black [As no Light can Penetrate the Filter]

GCSE Physics 2020-2022 OCR Gateway

What happens if Bob has a Blue Filter, and looks at a: 1. A Blue Case 2. a Red Hat

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