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Chapter 09.docx - ISLAMABAD ACADEMY MZD Pre-Board Test...

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ISLAMABAD ACADEMY MZDPre-Board Test (2016)ClassPaperTypeChapter/courseTotal MarksTime1styearPhysicsSubjectiveChapter 09401:50 hrsQ.2: Give the short Answer.(12x2=24)i.Under what conditions two or more sources of lightbehave as coherent sources?iiHow is the distance between interference fringes affectedby the separation between the slits of Young’s experiment?Can fringes disappear?iii.Can visible light produce interference fringes? Explain.iv.In the Young’s experiment, one of the slits is covered withblue filter and other with red filter. What would be thepattern of light intensity on the screen?v.Explain whether the Young’s experiment is an experimentfor studying interference or diffraction effects of light.vi.An oil film spreading over a wet footpath shows colours.Explain how does it happen?vii.Could you obtain newton’s rings with transmitted light? Ifyes, would the pattern be different from that obtainedwith reflected light?

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Term
Winter
Professor
Mr. Kale
Tags
Marketing, Light, Wavelength, Thomas Young, ISLAMABAD ACADEMY MZD

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