laser security alarm (Physics investigatory project 12)
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Kendriya Vidyalaya Mankhurd
PHYSICS investigatory PROJECT
• Topic => Laser Security Alarm System• Submitted To => PROMODINI PAL• Submitted By => NIKHIL CHAURASIA• Class => XII - A• Roll No. => _ _ _ _ _ _ _ _ _• Date of Submission : _ _/_ _/_ _ _ _
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CERTIFICATE
This is to certify that Mr. NIKHIL CHAURASIA of class XII - A ,ROlL NO. - _ _ _ _ _ _ _
Has successfully completed this physics project entitled " Laser Security Alarm System " under my guidance and supervision in the academic year
2016-2017, Miss PROMODINI PAL
Principal External Internal
Examiner Examiner
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ACKNOWLEDGEMENT
First of all, I heartily thank my physics Teacher, Miss PROMODINI PAL for her
incomparable efforts, And
I thank Mr. DASHRATH SOLANKI for constant support and cooperation indeed towards me
in the completion of this project.
Finally I would also grateful to my friends and parents who devoted their auspicious time in
completion of this project.
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PREFACE
"My project provides complete information on the topic "Laser Security Alarm System " and maximum efforts
have been taken to make the project more comprehensive and lucid to understand. My project
covers a variety of sub topics like It's working, setup, uses in life and different aspects of Laser Security Alarm
System. One may notice a perceptible change in written in an easy dialogue style engaging the readers constantly and included with more informatics comments. I assure you to go through this project thoroughly to know a bit more and facts about Laser Security Alarm System.
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INDEX
• Introduction.• Components / Materisl Required.• Circuit Diagram.• Experimental Setup.• Working.• Uses of Laser Security Alarm System.• Advantages of Laser Security Alarm
System.• Conclusion. • BIBLIOGRAPHY
Components / Material Required
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(1) Printed circuit boardA printed circuit board (PCB) mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. Components – capacitors, resistors or active devices – are generally soldered on the PCB. Advanced PCBs may contain components embedded in the substrate.
2) LDR
A photoresistor or light-dependent resistor (LDR) or photocell is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light intensity; in other words, it exhibits photoconductivity
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BIBLIOGRAPH
Sources of in formation are=> www.google.com=> NCERT 12TH BOOK=> PHYSICS PRACTICAL BOOK