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Tutorial ID | Title | Tutorial | Video Tutorial | Revision Notes | Revision Questions | |
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12.4 | Interference and Diffraction of Light |
1. Two yellow coherent light rays (λ = 580 nm) are incident normally to a single slit of width equal to 0.02 mm. What is the angle formed by the fourth minimum to the horizontal direction?
Correct Answer: C
2. The slits' separation in a Young Double Slit Experiment is 0.05 mm and the third maximum is formed on the screen at 2 cm distance from the central maximum. If the light waves used for this experiment are green (λ = 550 nm), calculate the distance D of the slits from the screen.
Correct Answer: A
3. A diffraction grating with 1000 gratings/cm is used to diffract a monochromatic light beam. As a result, the fifth maximum is formed at 150 to the horizontal direction as shown in the figure.
Calculate the wavelength of the light beam in nm.
Correct Answer: A
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