Solapur University M.Sc Nano Technology (Semester-I) Paper on Fundamentals of Nanotechnology in Physics March 2019
| Sr. No. | Question |
| 1 | An atom is a _______ arrangement.
(a) Complex (b) Easy (c) Unequal (d) Equal |
| 2 | Crystal structure is ________
(a) Lattice + basic (b) Only lattice (c) Only basis (d) Lattice-basis |
| 3 | X-rays are electromagnetic radiation with wavelengths between about ________
(a) 2A° an 200A° (b) 20 A° and 300 A° (c) 0.02 A° and 100 A° (d) 30 A° and 500 A° |
| 4 | The reciprocal lattice exists in ________
(a) Imaginary space (b) Reciprocal space (c) Internal space (d) External space |
| 5 | The smaller quantum dot which gives _________
(a) Higher wavelength (b) Lower wavelength (c) Equal wavelength (d) Very small wavelength |
| 6 | A Quantum dot is a nanostructure or tiny particle of a semiconducting substance with a diameter range of
(a) 20 nm to 50 nm (b) 30 nm to 40 nm (c) 1 nm to 10 nm (d) 20 nm to 30 nm |
| 7 | Electronic polarization occur due to _________
(a) Electric field (b) Magnetic field (c) Charge (d) Mechanical |
| 8 | LASER is a device that emits _________through a process of optical amplification
(a) Light (b) Rays (c) Radiation (d) Frequency |
| 9 | Luminescence is _________by a substance not resulting from heat, it is thus a form of cold body radiation
(a) Reflection of light (b) Absorption of light (c) Emission of light (d) Refraction of light |
| 10 | Electroluminescence (EL) is an optical phenomenon and _____
(a) Thermal phenomenon (b) Magnetic phenomenon (c) Heating phenomenon (d) Electrical phenomenon |
| 11 | In optical absorption procedure _________
(a) Photon rejected (b) Photon reflected (c) Photon refracted (d) Photon absorbed |
| 12 | Nano particle are changed its properties due to _______
(a) Size (b) Surface area (c) Area (d) Elasticity |
| 13 | _________ are one dimension nano materials
(a) Nano wire (b) Cluster (c) Quantum dots (d) flux |
| Published on 22nd Sept 2021 | |
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