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Electronic Devices · 2021 · 26 Feb · Shift 1

2 Physics questions from this JEE Main paper
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Electronic Devices · 2021 · 26 Feb · Shift 1

2 Physics questions from this JEE Main paper

  1. Q48.LED is constructed from Ga-As-P semiconducting material. The energy gap of this LED is 1.9 eV. Calculate the wavelength of light emitted and its colour. [h = 6.63 × 10 − 34 Js and c = 3 × 108 ms − 1]
    Physics · Electronic Devices · MCQ
  2. Q65.The circuit contains two diodes each with a forward resistance of 50 Ω and with infinite reverse resistance. If the battery voltage is 6V, the current through the 120 Ω resistance is ​ mA. Includes diagram
    Physics · Electronic Devices · Numerical