Solapur-University-M.Sc. – Electronics (Semester-II)-2019-On OPTO Electronics
| Sr. No | Questions with multiple options |
| 1. | A _______ consist of two adjoining semiconductor material with different band-gap energies.
(a) n-region (b) heterojunction (c) p-region (d) diffusion region |
| 2. | The LED is a _______ source of light.
(a) Incoherent (b) Coherent (c) Monochromatic (d) All of these |
| 3. | Which of the following does not supports the soot formation process?
(a) OVPO (b) MCVD (c) PCVD (d) All of these |
| 4. | In lambertian output pattern of LED, the source is ____ bright from all direction.
(a) Less (b) Equally (c) More (d) Unpredictably |
| 5. | The ____ are known as first order effect.
(a) Pocket effect (b) Magnetic effect (c) Acoustic effect (d) Kerr effect |
| 6. | The tight-buffered cable design structure nominally used ____ application.
(a) Indoor cable (b) Outdoor cable (c) Aerial cable (d) None of these |
| 7. | _____ are responsible for generating attenuation of an optical power in fiber.
(a) Absorption (b) Scattering (c) Waveguide effect (d) All of these |
| 8. | The ____ crystal is an example of uniaxial crystal
(a) Calcite (b) Tourmaline (c) Quartz (d) All of these |
| 9. | The optical fiber is made up of ____
(a) Plastic (b) Glass (c) Silica (d) Ceramic |
| 10. | In PIN photodiode, the time it takes for an electron or hole to recombine is known as ____
(a) Carrier lifetime (b) Diffusion length (c) Photocurrent (d) Photo carrier |
| 11. | The fiber ____ is a permanent or semi permanent joint between two fiber.
(a) Connector (b) Coupler (c) Splice (d) All of these |
| 12. | The ____ is a created by hetero-junction at collector-base junction.
(a) Potential barrier (b) Depletion region (c) Inductance (d) Capacitance |
| 13. | The spectral response of an ideal photo detector depicts its efficiency as a function of ____
(a) Amplitude (b) Frequency (c) Period (d) Wavelength |
| 14. | In cable, water is prevented from filling the spaces with ____ resistant compounds.
(a) Pressure (b) Temperature (c) Moisture (d) Stress |
| Data Collected By – K.Jeyanthi | |
| Published on – 14th Nov 2021 | |
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