Physics FSC Part 2 Online MCQ's Test With Answers

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Physics FSC Part 2 Online MCQ's Test

Sr. # Questions Answers Choice
1 A device which converts low voltage or current to high voltage or current is called. Transformer AC generator Amplifier Rectifier
2 The sensor of light is. Transistor LED Diode Light dependent resistance
3 Doping is made comparatively larger in Emitter Base Collector P -type semi conductor
4 Which component of the transistor has greater contrition of impurity. Base Emitter Collector Emitter and collector
5 The central region of a transistor is called. Emitter Collector Base Neutral
6 Transistors are made from Plastics Metals Insulator Doped semi conductors
7 Transistor was discovered by Young Curie John Bardeen Shale's
8 The ratio Beta in transistor is called. Voltage gain Emitter gain Current gain Nuclear gain
9 Photo diode detects. Visible light Radio waves X rays All of them
10 A photo diode can turn its current ON and OFF in Micro seconds Mega seconds Nano seconds Mili seconds
11 Which diode works at reverse biasing. LED Photo voltaic cell Photo diode Silicon diode
12 the number of terminals in a semiconductor diode are 2 3 4 5
13 Photo diode is used for detection of. Heat Magnet Current Light
14 The colour of light emitted by a LED depends on. It forward biased Its reverse biased Unbiased None of these
15 A light emitting diode emits light only when Reverse biased Forward biased Unbiased None of these
16 Light emitting diodes are made from semiconductors. Silicon Germanium Carbon Gallium arsenide
17 In photovoltaic cell, current is directly proportional to. Wavelength of light Intensity of light Energy Frequency of light
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