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Very important questions of wave optics
Very important questions of wave optics – Long answer type questions (3 and 5 marks)-
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Important numerical of wave optics
Important numerical of wave optics 1. In a Young’s double slits experiment fringes are obtained on a screen placed at certain distance away from the slits . If the screen is moved by 5 cm towards the slit , the fringe width changes by 30 μm . Given that the slits are 1mm apart .…
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Very important short answer type questions of wave optics
Very important Short answer type questions of wave optics Short answer type questions (2 marks )- 1. Define the term wave-front . Use Huygen’s principle to show diagrammatically the propagation of a wave-front from the instant t1 =0 to a later time t2=t . 2. Write the conditions under which light rays said to be…