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MCQs for Wave Optics
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MCQs for Wave Optics
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13 Questions

1. The angular resolution of a 10 cm diameter telescope at a wavelength of 5000 A is of the order of
2. The idea of secondary wavelets for the. propagation of a wave was first given by
3. The refractive index of glass is 1.5 for light waves of X = 6000 A in vacuum. Its wavelength in glass is
4. Light propagates rectilinearly, due to
5. When interference of light takes place
6. The angular resolution of a 10 cm diameter telescope at a wavelength of 5000 A is of the order of
7. Two slits in Young's double slit experiment have widths in the ratio 81 :1. The ratio of the amplitudes of light waves is
8. The phenomena which is not explained by Huygen's construction of wavefront
9. The velocity of light in air is 3 * 108 ms-1 and that in water is 2.2 * 108 ms' . The polarising angle of incidence is
10. A laser beam is used for locating distant objects because
11. When interference of light takes place
12. To observe diffraction, the size of the obstacle
13. An optically active compound

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