DUET PhD in Electronics Question Paper with Answer Keys 2019-20 Download PDF

DUET PhD in Electronics Question Paper with Answer Keys 2019-20

DUET PhD in Electronics Question Paper 2019-20

Delhi University Entrance Test (DUET) 2019-20 PhD in Electronics Question Paper with answers DUET PhD in Electronics Question Paper 2019-20 with solution you can download it in FREE, if DUET PhD in Electronics Question Paper 2019-20 in text or pdf for DUET PhD in Electronics Question Paper 2019-20 Answer Keys you can download DUET 2019-20 page also just Go to menu bar, Click on File->then Save.

DUET PhD in Electronics Question Paper with Answer Keys 2019-20

Delhi University Entrance Test (DUET) 2019-20 PhD in Electronics Question Paper with Answer Keys Free Download PDF is available in www.oldquestionpapers.net which has been provided by many students this DUET 2019-20 paper is available for all the students in FREE and also DUET PhD in Electronics Question Paper 2019-20 fully solved DUET with answer keys and solution.

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EXAMPLE QUESTIONS

Q1. The Erbium Doped Fiber Amplifier (EDFA) is used for optical communication systems in the wavelength range

  • 1. 1460 nm- 1530 nm (S-Band)
  • 2. 1360 nm- 1460 nm (E-Band)
  • 3. 1530 nm-1565 nm (C-Band)
  • 4. 1260 nm-1360 nm (0-Band)

Q2. LEDs fabricated from Gallium Arsenide (GaAs) emit radiation in the

  • 1. infrared region
  • 2. ultraviolet region
  • 3. ultrasonic region
  • 4. visible region

Q3. A micro-strip line of 50 Ω is terminated in ZL = 40 + j 30 Ω. What is the VSWR of the load ?

  • 1. 2.0
  • 2. 1.5
  • 3. 1.3
  • 4. 1.8

Q4. The attenuation in an optical fiber at 1550 nm is 0.2 dB/km. If 160 µW power is launched into the fiber at 1550 nm, estimate the power in the fiber after 30 km.

  • 1. 45 µW
  • 2. 40 µW
  • 3. 15 µW
  • 4. 80 µW

Q5. For which of the following radii range is a step index fiber with numerical aperture 0.2 and single-method for operation at the infrared wavelenght λ = π µm

  • 1. a ≤ 3.9 µm
  • 2. a ≤ 6 µm
  • 3. a ≤ 7.8 µm
  • 4. a ≤ 6 µm

DUET PhD in Electronics Question Paper with Answer Keys 2019-20 Download PDF File:

Sr. No.

 Papers Name PDF Files
1. PhD in Electronics

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