Lasers
- Lasers are light beams that are powerful enough to travel miles into the sky and cut through lumps of metal.
Characteristics of Lasers
- Superior Monochromatism
- Superior Directivity
- Superior Coherence
- High Output
Uses of Laser
Tools
- Cutting tools that employ CO2 lasers are widely used in industries. They are precise, easy to automate and don’t need sharpening, unlike knives.
- We use robot-guided lasers to cut pieces of cloth to make things such as denim jeans than using our bare hands. They are faster, more accurate and improve efficiency and productivity.
- The same precision is of utmost importance in the field of medicine.
- Doctors use lasers for everything from blasting cancerous tumours to correcting defective eyesight.
Communication
- The barcode scanner in a grocery store uses a laser to convert a printed barcode into a number that a checkout computer can understand.
- Every time you play a CD or a DVD, a semiconductor laser beam bounces off the spinning disc to convert its printed pattern of data into numbers; a computer chip converts these numbers into movies, music, and sound.
- Lasers are used in fibre optic cables and a technology known as photonics which uses photons of light to communicate.
Defence
- The military uses laser-guided weapons and missiles.
Also Read
- Nature of universe / பேரண்டத்தில் இயல்புகள்
- General Scientific Law / பொது அறிவியல் விதிகள்
- Electricity and Electronics / மின்னியல் மற்றும் மின்னணுவியல்
- Elements and Compounds / தனிமங்களும் சேர்மங்களும்
- Carbon / கார்பன்
- Nitrogen and their compounds / நைட்ரஜன் மற்றும் அதன் சேர்மங்கள்
- Fertilizer / உரங்கள்
- Pesticides / களைக்கொல்லி
- Insecticides / பூச்சிக்கொல்லி
- Blood and blood circulation / இரத்தம் மற்றும் இரத்த சுழற்சி மண்டலங்கள்
- Endocrine system reproductive system / நாளமில்லா சுரப்பி மண்டலம், இனப்பெருக்க மண்டலம்