LED, Photodiode and Solar Cell

JEE Main Physics · Semiconductor Electronics · 7 questions, latest first

• The maximum rated power of the LED is 2 mW and it is used in the circuit with input voltage of 5 V as shown in the figure below.…20266 April, Shift 1 · Q39
• Consider the following statements: A. The junction area of solar cell is made very narrow compared to a photo diode. B. Solar…202524 January, Shift 1 · Q45
• A light emitting diode (LED) is fabricated using GaAs semiconducting material whose band gap is 1.42 eV. The wavelength of light…20249 April, Shift 1 · Q48
• Conductivity of a photodiode starts changing only if the wavelength of incident light is less than 660 nm. The band gap of…20241 February, Shift 2 · Q48
• Which one of the following statement is not correct in the case of light emitting diodes? A. It is a heavily doped p-n junction.…202329 January, Shift 1 · Q20
• Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Photodiodes are…202325 January, Shift 1 · Q19
• Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Photodiodes are…202324 January, Shift 1 · Q11