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2003 Course Applied Science - II

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Total No. of Questions : 12] [Total No. of Printed Pages : 4 [3761]-17 F. E. Examination - 2010 APPLIED SCIENCE - II (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions : (1) Answer to the two sections should be written in separate books. (2) Black figures to the right indicate full marks. (3) Use of logarithmic tables, slide rule, mollier charts, electronic pocket calculator and steam tables is allowed. (4) Neat diagrams must be drawn wherever necessary. (5) Assume suitable data, if necessary. Constants : h = 6.63 10 34 J-sec. me = 9.1 10 31 kg. e = 1.6 10 19 C c = 3 108 m/sec. SECTION - I Q.1) (A) Explain De-Broglie s Concept of Matter Waves. Derive an Expression for the De-Broglie Wavelength in terms of Energy. [06] (B) Derive Expressions for Energy and Wave Function of a Particle in a Rigid Box. [07] (C) An electron is bound by a potential box of infinite height having a width 2.5Ao. Calculate the minimum uncertainty in its velocity. [04] OR [3761]-17 1 P.T.O.

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