87. A lamp emits light of two distinct wavelengths, x and y. When the lamp is used as a source for a diffraction grating experiment, it is found that the second order maximum for wavelength x occurs at precisely the same angle as the third order maximum for wavelength y. The ratio x to y is therefore А. 2 В. 3/2 С. 2/3 D. ½
87. A lamp emits light of two distinct wavelengths, x and y. When the lamp is used as a source for a diffraction grating experiment, it is found that the second order maximum for wavelength x occurs at precisely the same angle as the third order maximum for wavelength y. The ratio x to y is therefore А. 2 В. 3/2 С. 2/3 D. ½
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Transcribed Image Text:87. A lamp emits light of two distinct wavelengths, x and y. When the lamp is used as a source for a
diffraction grating experiment, it is found that the second order maximum for wavelength x occurs at
precisely the same angle as the third order maximum for wavelength y. The ratio x to y is therefore
А. 2
В. 3/2
С. 2/3
D. ½
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