Chapter 9 - Physical Optics - 1


Physics Class 11
1. According to Huygen's principle, light travels in the form of:-




Physics Class 11
2. The wavelength of light can be guessed by:-




Physics Class 11
3. According to Young's double slit experiment, a clear interference is obtained due to:-




Physics Class 11
4. Interference produced by the reflected light is constructive if the thickness of the their film is:-




Physics Class 11
5. Diffraction of x-rays by crystals shows that:-




Physics Class 11
6. Polarization of light proves that light waves are:-




Physics Class 11
7. Two independent light sources do not show interference because they are not:-




Physics Class 11
8. The direction of propagation of light ray is:-




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