Laser and IPL with correct answers 100% 2026

Laser and IPL with correct answers 100% 2026 What is a unit of energy measured in? - Correct Answer Joules Describe alexandrite laser - Correct Answer Best for finer or lighter hair 755 nanometers describe diode laser - Correct Answer Cooling tip Best for seller complexions 810 nanometers If high powered, significant results What is a laser? - Correct Answer A device that generates a beam of coherent light What is photothermolysis? - Correct Answer A microsurgery technique used to target a specific area. A process that turns laser light into heat. Uses a specific wavelength and pulse duration 4 main components of a laser system? - Correct Answer Energy source Laser medium Optical resonator Wave guide 2 differences of laser light - Correct Answer Spreading (non-coherent) Single wavelength (coherent) What is spot size? - Correct Answer The width of the beam measured in millimeters. The spot size affects the penetration depth. Larger= courser darker hair Smaller = finer hair Describe IPL - Correct Answer Full spectrum non coherent broad band light Uses Blue yellow and red light Not suitable for darker skin tones Describe ND:YAG laser - Correct Answer Suitable for most skin tones Long pulse Long term results Uses a carbon based lotion Can be less painful What is a nanometer? - Correct Answer A spatial measurement One times 10 to the power of 9 What wavelengths are measure in Describe repetition rate - Correct Answer The number of pulses per second measure in Hertz Describe pulse duration - Correct Answer The time it takes for the pulse of energy to be delivered into the targeted tissue What is energy influence measured in? - Correct Answer Fluence is measured in joules cm squared Wave lengths for ruby, alexandrite and ND YAG - Correct Answer R : 674 A: 755 ND:1064 The difference between laser and IPL - Correct Answer Laser is coherent IPL is non coherent What is fluence - Correct Answer The amount of energy delivered into the tissue in one square cm Describe hertz - Correct Answer A unit of measurement specifying the number of pulses per second. How fast the fluence is delivered. Describe ruby laser - Correct Answer Shorter wavelength Only use on skin types 1-3 Can cause hyperpigmentation on dark or tanned skin What is electromagnetic amplitude? - Correct Answer The height from one peak to the bottom of the next Laser lights 3 distinct qualities - Correct Answer Monochromatic-wavelength Coherence-wave fronts Collimated- beam is controlled and waves travel in a parallel fashion What hair growth stage is laser most effective? - Correct Answer Anagen What is electromagnetic frequency? - Correct Answer The number of peaks that pass a given point per second - measured in hertz What is electromagnetic wavelength - Correct Answer The distance from one peak to another and one trough to another The word laser is an acronym for what? - Correct Answer Light amplification by stimulated emission of radiation 4 types of lasers - Correct Answer Solid state Semi conductor Gas Dye What are the laser wavelengths? - Correct Answer 400 blue purple 500 purple green 600 yellow orange 700 red What are chromophores? - Correct Answer Substances that absorb laser light Oxy hemoglobin Dye/ink Water Melanin