Stop using modafinil and call your doctor at once if you have any of these serious side effects: 1  fever, sore throat, headache, and vomiting with a severe blistering, peeling, and red skin rash; 2  bruising, severe tingling, numbness, pain, muscle weakness;  easy bruising or bleeding;
Laser light is monochromatic, directional, and coherent Monochromatic: The light emitted from a laser is monochromatic, that is, it is of one wavelength (color).In contrast, ordinary white light is a combination of many different wavelengths (colors).Directional: Lasers emit light that is highly directional.hat is the only characteristic of laser light. Ordinary light has a bunch of light waves where the timing of the waves has no relationship from wave to wave, so it is not coherent. Let me touch on why what other people have said is not right.
Visible light is visible (for the human eye), infrared is not. Infrared has a longer wavelength, and a higher frequency. visible light is visible to human i.e the VIBGYOR, aboâ¦ve vibgyor are ultravoilet light which is not visible to human eye and below vibgyor are infrared light which is also not visible to human eye.