This document contains a list of 186 physics projects with their rates. The projects cover a wide range of topics including home appliance control, security systems, sensors for light, temperature, liquid levels and more. Many involve the use of microcontrollers, infrared technology, alarms and indicators. The list provides inexpensive electronics projects suitable for hobbyists, students and makers.

1. Sr. No Physics Projects Rate
1 Home Appliance Control Using TV Remote
2 Tank Overflow Preventer
3 Remote Control for Toy Car
4 Laser-based Intruder Alarm
5 Gas Leakage Alarm
6 Dew-Point Sensor
7 Infrared Illuminator
8 Motion Sensor for Security Light
9 Bipolar Transistor Tester
10 Digital Thermometer
11 Water-Level Indicator Using 7-segment Display
12 Automatic Light Controller Using 7806
13 Anti sleep Alarm for Students
14 Numeric Water-level Indicator
15 Versatile Probe
16 Simple Sensitive Remote Control Tester
17 Pyroelectric Fire Alarm
18 Transistorised Logic Probe for TTL
19 Constant-Current Battery Charger
20 Liquid Level Alarm
21 Skin Response Meter
22 Solar Panel based Charger and Small LED Lamp
23 Remote-operated Master Switch
24 Triple Power Supply
25 Smart Hearing Aid
26 Midnight Security Light
27 Automated Alarm Circuits
28 Laser-guided Door Opener
29 Battery-level Indicator
30 Traffic Controller
31 Night Alert
32 Wireless Switch
33 Three-Phase Appliance Protector
34 Aquarium Probe
35 Bicycle Indicator
36 Poor Man’s Hearing Aid
37 Portable Lamp Flasher
38 Car Anti-theft Guard
39 USB Power Booster
40 Smart Vibration Sensor
41 Drinking Water alarm
42 Tester For Remote Control
43 Automatic Low-Power Emergency Light
44 Current Sensor
45 Seismic Sensor
46 Motorbike Alarm
47 Desktop Power Supply
48 PC Temperature Alarm
49 Mobile Shield
50 Automatic Phase Changer

2. 51 Clock Timer
52 Fully Automatic Emergency Light
53 Electronic Horn
54 Darkroom Timer
55 Water level indicator With Alarm
56 Precision Amplifier with Digital Control
57 Security System Switcher
58 Digital Speedometer
59 House Security System
60 Long Range IR Transmitter
61 Telephone Conversation Recorder
62 Automatic Dual Output Display
63 Digital Dice With Numeric Display
64 2-Line Intercom-Cum-Telephone Line Changeover Circuit
65 Teleremote Control
66 Programmable LED Indicator
67 Touch Sensitive Musical Bell With Timer
68 Staircase Light With Auto Switch-Off
69 Tiny Dew Sensor
70 Telephone Ringer Using Timer ICs
71 Power Supply Failure Alarm
72 Protection for Your Electrical Appliance
73 Simple Code Lock
74 PC-based 7 Segment Rolling Display
75 Automatic Room Power Control
76 Fuild Level Detector
77 Accurate Electronic Stop Watch
78 Sensitive Temperature Switch
79 Ramp Controlled Light
80 Shortwave Transmitter
81 Programmable Door-Bell with Flashing LEDS
82 Parallel Telephone With Secrecy
83 Magnetic Proximity Switch
84 Electronic Card-Lock System
85 Blown Fuse Indicator
86 LED-Based Message Display
87 Water-LeveL Controller
88 Fastest finger first-indicator
89 Musical 'Touch' Bell
90 Contactless AC Mains Voltage Detector
91 Fire Alarm
92 Short Wave AM Transmitter
93 Solidstate Auto Power off on Mains Failure
94 Automatic Emergency Torch
95 Automatic Emergency Light
96 Versatile CMOS TTL Logic and Clock Probe
97 A Hierarchical Priority Encoder
98 Digital Mains Voltage Indicator
99 Automatic Speed Controller For Fans and Coolers
100 Long-range FM Transmitter
101 Self Switch Power Supply

3. 102 Electrical Equipment Control Using PC
103 Sleep Switch Cum Wake Timer
104 Simple Analogue To Digital Converter
105 Digital Switching System
106 Frequency Measurement Using PC
107 Miniature Strobe Light
108 Clap Remote
109 Smart Phone Light
110 Handy Zener Diode Tester
111 High & Low Voltage Cutout
112 Color Sensor
113 Running Message Display
114 Automatic Temperature Controlled Fan
115 Clap Switch
116 Ultrasonic Proximity Detector
117 Variable Power Supply Using a Fixed-Voltage Regulator IC
118 Appliance Timer-Cum-Clap Switch
119 Bell-Cum Light Controller
120 Friendly Charger for Mobile Phones
121 Hearing Aid
122 Speed Control of DC Motor Using Pulse-Width Modulation
123 Remote-Controlled Fan Regulator
124 School-College Quiz Buzzer
125 Solar Lighting System
126 Infrared Bug
127 Versatile Power Supply
128 Shadow Alarm
129 Versatile Water-Level Controller
130 Remote-Controlled Power-Off Switch
131 Stress Meter
132 Heat-Sensitive Switch
133 Sensitive Vibration Detector
134 Fuel Reserve Indicator For Vehicles
135 Brake Failure Indicator
136 Safety Guard
137 Mains Supply Failure Alarm
138 Remote Control For Home Appliances
139 Auto Turn-Off Battery Charger
140 Fire Alarm Using Thermistor
141 Electronic Watchdog
142 Automatic School Bell
143 Anti-Theft Alarm For Bikes
144 DC Motor Control Using A Single Switch
145 Solidstate Remote Control Switch
146 Flashing-Cum-Running Light
147 Digital Stop Watch
148 Cell-Phone-Controlled Audio Video Mute Switch
149 PC-Based DC Motor Speed Controller
150 Low-Cost Electronic Quiz Table
151 Mobile Cellphone Charger
152 Remote-Operated Musical Bell

4. 153 Electronic Motor Starter
154 Low-Cost Hearing Aid
155 Infrared Remote Control Timer
156 Multi-Switch Doorbell With Indicators
157 Electronic Security System
158 Lead-Acid Battery Charger With Voltage Analyser
159 Ultra-Bright LED Lamp
160 Three-Colour Display Using Bicolour LEDs
161 Intruder Radio Alert System
162 Automated Traffic Signal Controller
163 Infrared Toy Car Motor Controller
164 Mains Manager
165 IR Remote Switch
166 FM Booster
167 Laser Torch-Based Voice Transmitter And Receiver
168 Mobile Phone Battery Charger
169 DTMF Proximity Detector
170 Versatile Zener Diode Tester
171 9-Line Telephone Sharer
172 Automatic Heat Detector
173 IR Remote Control
174 Car Anti-Theft Wireless Alarm
175 Charge Monitor For 12V Rechargeable Lead-Acid Battery
176 Dual-Channel Digital Volume Control
177 Infrared Cordless Headphone
178 Simple Low-Cost Digital Code Lock
179 Electronic Jam
180 Wiper Speed Controller
181 IC Controlled Emergency Light With Charger
182 Colour Sensor
183 Universal High-Resistance Voltmeter
184 Tank Overflow Preventer
185 Capacitance Bridge
186 Darkness Controlled Light Switch