Physics ICS Part 2 Online MCQ's Test With Answers

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Physics ICS Part 2 Online MCQ's Test

Sr. # Questions Answers Choice
1 Photo diode detects. Visible light Radio waves X rays All of them
2 A photo diode can turn its current ON and OFF in Micro seconds Mega seconds Nano seconds Mili seconds
3 Which diode works at reverse biasing. LED Photo voltaic cell Photo diode Silicon diode
4 the number of terminals in a semiconductor diode are 2 3 4 5
5 Photo diode is used for detection of. Heat Magnet Current Light
6 The colour of light emitted by a LED depends on. It forward biased Its reverse biased Unbiased None of these
7 A light emitting diode emits light only when Reverse biased Forward biased Unbiased None of these
8 Light emitting diodes are made from semiconductors. Silicon Germanium Carbon Gallium arsenide
9 In photovoltaic cell, current is directly proportional to. Wavelength of light Intensity of light Energy Frequency of light
10 Conversation of only one half of A.C. into D.C. is called. Half wave amplification Wave amplification Half wave electrification Half wave rectification
11 Rectification is the process of converting. D.C. into A.C. A.C. in to D.C. Low signal to high High signal to low
12 A.C. can be converted into D.C. by An oscillator Detector An amplifier Rectifier
13 Pulsating output of full wave rectifier can be made smooth by using circuit called. Filter Amplifier Resistor Transistor
14 The output voltage of a rectifier is. Smooth Pulsating Alternating Per featly direct
15 For rectification we use. Transformer Diode Choke Generator
16 During negative half cycle of A.c then p-n junction offers. High resistance Low resistance No resistance All of these
17 In full wave rectification number of diodes required are equal to. 2 3 4 5
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