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QI) A) Explain the Possibility of Electron Transitions that Give Rise to K, L and M Characteristic X- Rays (Alpha X- ray, Beta x- ray and gamma) B) Calculate the X-ray angle for Si (111) and (200) peak, giving the lattice parameter of Si is 5.43A and X-ray wavelength is 1.54A (Cu Ka) C) The metal rhodium has an FCC crystal structure. If the angle of diffraction for the (311) set of planes occurs at 36.120 (first-order reflection) when monochromatic x-radiation having a wavelength of 0.0711 nm is used, compute (a) the interplanar spacing for this set of planes, and (b) the atomic radius for a rhodium atom. Q2) (A) What is the nanotechnology? And why metal with grain size of around 10 nanometers is much as seven times harder and tougher than their ordinary counterparts with grain size in hundreds of micrometer. (B) Explain how the materials properties depend on the bonding energy such as modules of elasticity, young modulus, coefficient of thermal expansion and melting temperature. (C) Differentiate between typical metallic bonding: Cu, Al, Au, Ag, etc. and hydrogen bond in water

QI) A) Explain the Possibility of Electron Transitions that Give Rise to K, L and M Characteristic X- Rays (Alpha X- ray, Beta x- ray and gamma) B) Calculate the X-ray angle for Si (111) and (200) peak, giving the lattice parameter of Si is 5.43A and X-ray wavelength is 1.54A (Cu Ka) C) The metal rhodium has an FCC crystal structure. If the angle of diffraction for the (311) set of planes occurs at 36.120 (first-order reflection) when monochromatic x-radiation having a wavelength of 0.0711 nm is used, compute (a) the interplanar spacing for this set of planes, and (b) the atomic radius for a rhodium atom. Q2) (A) What is the nanotechnology? And why metal with grain size of around 10 nanometers is much as seven times harder and tougher than their ordinary counterparts with grain size in hundreds of micrometer. (B) Explain how the materials properties depend on the bonding energy such as modules of elasticity, young modulus, coefficient of thermal expansion and melting temperature. (C) Differentiate between typical metallic bonding: Cu, Al, Au, Ag, etc. and hydrogen bond in water

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Q1) A) Explain the Possibility of Electron Transitions that Give Rise to K, L and M Characteristic X- Rays (Alpha X – ray, Beta x – ray and gamma) B) Calculate the X-ray angle for Si (111) and (200) peak, giving the lattice parameter of Si is 5.43A and X-ray wavelength is 1.54A (Cu Ka) C) The metal rhodium has an FCC crystal structure. If the angle of diffraction for the (311) set of planes occurs at 36.120 (first-order reflection) when monochromatic x-radiation having a wavelength of 0.0711 nm is used, compute (a) the interplanar spacing for this set of planes, and (b) the atomic radius for a rhodium atom. Q2) (A) What is the nanotechnology? And why metal with grain size of around 10 nanometers is much as seven times harder and tougher than their ordinary counterparts with grain size in hundreds of micrometer. (B) Explain how the materials properties depend on the bonding energy such as modules of elasticity, young modulus, coefficient of thermal expansion and melting temperature. (C) Differentiate between typical metallic bonding: Cu, Al, Au, Ag, etc. and hydrogen bond in water Q3) (A) Calculate the volume of the unit cell in cubic meters, if the atomic radius of aluminum is 0.143 nm (B) Why the surface and the interface is key challenge for those working on nonmaterial.? © A piece of Copper has density 3.2g/cm3 and the atomic weight is 20 g/mol. calculate the number of atoms if the dimension of this piece is 10 cm long, 5cm the width and thickness of 2 cm Q4) (A)Expain How do atoms arrange themselves to form solids? (B) Is it possible to fined solid in three crystalline form, if there is what it calls? And give example. (C)When the surface of the solid will be more stable, state the condition according to nanostructure. (D)state the BRAGG’S LAW and explain the mechanism over nanotechnology analysis?
Transcribed Image Text:Q1) A) Explain the Possibility of Electron Transitions that Give Rise to K, L and M Characteristic X- Rays (Alpha X – ray, Beta x – ray and gamma) B) Calculate the X-ray angle for Si (111) and (200) peak, giving the lattice parameter of Si is 5.43A and X-ray wavelength is 1.54A (Cu Ka) C) The metal rhodium has an FCC crystal structure. If the angle of diffraction for the (311) set of planes occurs at 36.120 (first-order reflection) when monochromatic x-radiation having a wavelength of 0.0711 nm is used, compute (a) the interplanar spacing for this set of planes, and (b) the atomic radius for a rhodium atom. Q2) (A) What is the nanotechnology? And why metal with grain size of around 10 nanometers is much as seven times harder and tougher than their ordinary counterparts with grain size in hundreds of micrometer. (B) Explain how the materials properties depend on the bonding energy such as modules of elasticity, young modulus, coefficient of thermal expansion and melting temperature. (C) Differentiate between typical metallic bonding: Cu, Al, Au, Ag, etc. and hydrogen bond in water Q3) (A) Calculate the volume of the unit cell in cubic meters, if the atomic radius of aluminum is 0.143 nm (B) Why the surface and the interface is key challenge for those working on nonmaterial.? © A piece of Copper has density 3.2g/cm3 and the atomic weight is 20 g/mol. calculate the number of atoms if the dimension of this piece is 10 cm long, 5cm the width and thickness of 2 cm Q4) (A)Expain How do atoms arrange themselves to form solids? (B) Is it possible to fined solid in three crystalline form, if there is what it calls? And give example. (C)When the surface of the solid will be more stable, state the condition according to nanostructure. (D)state the BRAGG’S LAW and explain the mechanism over nanotechnology analysis?
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