Solid State Electronic Devices MCQ

Test your knowledge with important Solid State Electronic Devices MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Solid State Electronic Devices MCQs at Bissoy

• The critical angle in total internal reflection depends on the colour of the incident light.
  ক

  True

  খ

  False
• What is the working principle of optical fiber?
  ক

  Total internal refraction

  খ

  Total internal reflection

  গ

  Lenz Law

  ঘ

  Brine theory
• Which layer is just present above cladding that protects the optical fibre from physical damage?
  ক

  Core

  খ

  Cladding

  গ

  Coating

  ঘ

  Cover
• Which layer is just present above core that protects the light from going outside?
  ক

  Core

  খ

  Cladding

  গ

  Coating

  ঘ

  Mine
• Who is known as the father of fibre optics?
  ক

  Nick brown

  খ

  Nick Holonyak

  গ

  Stefencolumbus

  ঘ

  Narinder Singh Kapany
• Which electromagnetic rays is emitted GaAs LED’s ?
  ক

  Infrared

  খ

  Visible light

  গ

  Ultraviolet

  ঘ

  Radio
• Optical isolator is also called as ________
  ক

  Opaque isolator

  খ

  Optical coupling

  গ

  Optocoupler

  ঘ

  Optical resistor
• Which is a type of Opto-isolator?
  ক

  CMCP793V-500

  খ

  MOC3021

  গ

  MPU 6050

  ঘ

  L298N
• LASER stands for ____
  ক

  Light amplification by systematic emission of radiation

  খ

  Light amplification by stimulated emission of radiation

  গ

  Light absorption by stimulated emission of radiation

  ঘ

  Low amplification by stimulating emitted radiation
• Opto-isolator uses a source of light for transmission, most commonly “near infrared light emitting diodes”.
  ক

  True

  খ

  False
• Recombination of charge carriers in an LED, releases some energy which comes out in the form of light.
  ক

  True

  খ

  False
• Which alloy is used for red, orange and yellow LED’s?
  ক

  InGaN (Indium gallium nitride)

  খ

  GaAs (Gallium arsenide)

  গ

  (AlGaInP) Aluminum gallium indium phosphide

  ঘ

  TiO2(titanium dioxide)
• Which alloy is used for green blue and white LED’s?
  ক

  InGaN (Indium gallium nitride)

  খ

  GaAs (Gallium arsenide)

  গ

  (AlGaInP) Aluminum gallium indium phosphide

  ঘ

  TiO2(titanium dioxide)
• Who was/were awarded with noble prize in physics in the year 2014 for the invention of blue light emitting diodes?
  ক

  Hiroshi Amano

  খ

  Nick Holonyak

  গ

  Isamu Akasaki, Hiroshi Amano

  ঘ

  Isamu Akasaki, Hiroshi Amano and Shuji Nakamura
• Who developed the first Light emitting diode?
  ক

  Nick brown

  খ

  Nick Holonyak

  গ

  Stefencolumbus

  ঘ

  Billy Stern
• A TRIAC (Triode alternating current) cannot perform switching action on DC voltage.
  ক

  True

  খ

  False
• What is the full form of SCR?
  ক

  Silicon controlled rectifier

  খ

  Silicate controlled rectifier

  গ

  Silicon controlled rectification

  ঘ

  Silicon controlling rectification
• How many layers of semiconductor does a TRIAC (Triode alternating current) have?
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• TRIAC (Triode alternating current) is unipolar device.
  ক

  TRUE

  খ

  FALSE
• TRIAC can act as AC switch.
  ক

  True

  খ

  False
• TRIAC is a unidirectional device.
  ক

  True

  খ

  False
• Which is an example of TRIAC?
  ক

  OptoNCDT ILR 1030

  খ

  OptoNCDT1420

  গ

  BT136

  ঘ

  EddyNCDT 3301
• How many doped regions do a standard TRIAC have?
  ক

  1

  খ

  6

  গ

  3

  ঘ

  4
• How many terminals does a TRIAC (Triode alternating current) have?
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• How many minimum thyristors make up a TRIAC (Triode alternating current)?
  ক

  0

  খ

  1

  গ

  2

  ঘ

  3
• DIAC’s do not work with DC voltage.
  ক

  True

  খ

  False
• What is the full form of TRIAC?
  ক

  Triode attenuating current

  খ

  Triode for alternating current

  গ

  Trioxide for analogous current

  ঘ

  Triode analogous current
• What is the full form of DIAC?
  ক

  Diode for alternating current

  খ

  Diode attenuating current

  গ

  Dioxide for analogous current

  ঘ

  Diode analogous current
• DIAC’s get damaged when voltage of wrong polarity is applied at its terminals.
  ক

  True

  খ

  False
• DIAC starts to conduct current after some threshold voltage.
  ক

  True

  খ

  False