A-LevelPhysicsWaves9702/12 · Oct/Nov 2015 · Q271 Mark
P is a source emitting infra-red radiation and Q is a source emitting ultra-violet radiation. The figures in the table are suggested values for the wavelengths emitted by P and Q. Which row is correct?
Awavelength emitted by P/m: 5 x 10⁻⁵, wavelength emitted by Q/m: 5 x 10⁻⁸
Bwavelength emitted by P/m: 5 x 10⁻⁵, wavelength emitted by Q/m: 5 x 10⁻¹⁰
Cwavelength emitted by P/m: 5 x 10⁻⁷, wavelength emitted by Q/m: 5 x 10⁻⁸
Dwavelength emitted by P/m: 5 x 10⁻⁷, wavelength emitted by Q/m: 5 x 10⁻¹⁰
✓ Correct answer
A: wavelength emitted by P/m: 5 x 10⁻⁵, wavelength emitted by Q/m: 5 x 10⁻⁸
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