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ECAT Physics Chapter 9 Physical Optics Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | Stars twinkle due to | The fact that they do not emit light continuously The refractive index of earth's atmosphere fluctuates The Star's atmosphere absorbs its light intermittently None of these |
| 2 | A prism splits a beam of white light into seven component colors. This is so because | Phase of different colors is different Amplitude of different colors is different Wavelength of different colors is different Velocity of different colors is different |
