Visible spectrum - Study guides, Class notes & Summaries

SCIE 1P51 Final Exam Questions & Answers 2024/2025 UVA - ANSWERSRadiation that is in the region of the ultraviolet spectrum which is nearest to visible light and extends from about 320-400 nm in wavelength and that causes tanning and contributes to aging of the skin UVB - ANSWERSRadiation that is in the region of the ultraviolet spectrum which extends from about 280-320 nm in wavelength and that is primarily responsible for sunburns, aging of the skin, and the development of skin cancer....

OCPP 102 1.1 (Principles Of Light, Electromagnetic Spectrum Visible And Invisible Light) – Q’s And A’s

The atom - Consists of a small nucleus with a positive charge containing most of the weight. Has an electron cloud with mostly empty space but some electrons as well Protons - The chemical identity of the element Electrons - Ionic character of atom Neutrons - Isotopic character of the atom Atomic number (Above element on PT) represents... - Number of protons Mass number represents... - Sum of protons and neutrons Atomic mass (Under element on PT) represents... - An average of the atomic m...

Which of the following lamps provides a continuous spectrum of radiant energy in the visible, near IR, and near UV regions of the spectrum? A. Tungsten-filament B. Hydrogen C. Deuterium D. Mercury vapor - A most common light source for photometry in the visible region. continuous spectrum (360-800 nm). near IR and UV. Hydrogen and Deuterium (200-375 nm) Mercury vapor- not a continuous spectrum, emitting radiation at specific wavelengths Which of the following isolates light within a na...

Which of the following lamps provides a continuous spectrum of radiant energy in the visible, near IR, and near UV regions of the spectrum? A. Tungsten-filament B. Hydrogen C. Deuterium D. Mercury vapor - A most common light source for photometry in the visible region. continuous spectrum (360-800 nm). near IR and UV. Hydrogen and Deuterium (200-375 nm) Mercury vapor- not a continuous spectrum, emitting radiation at specific wavelengths Which of the following isolates light within a na...

Describe laser - Correct Answer ️️ -Monochromatic (single color), coherent (organized), collimated (tight, parallel beam) What 3 parts does a laser need in order to work properly? - Correct Answer ️️ -Energy source, active medium, & optical cavity What is a unit that measures the wavelength of light? - Correct Answer ️️ -Nanometer What light is outside of the visible spectrum? - Correct Answer ️️ -Ultraviolet Why do UV rays damage the skin? - Correct Answer ️️ -The rays...

A star has an apparent brightness of -2 and an absolute brightness of 1. What must be true? Select one: a. The star is further than 10 parsecs b. The star is at 10 parsecs c. The star is closer than 10 parsecs d. The star is close to exploding - c What is special about electromagnetic waves? Select one: a. We can see all of them b. They do not need a medium to travel c. They only exist near stars d. Each color travels at a different speed - b A star that has a smaller absolute bright...

PSYC 2301 Psychology 2301 Collin College - Question and answers correctly solved PSYC 2301: Unit 2 Exam Review Which of the following describes the difference in stimuli required to detect a difference between the stimuli? - correct answer Just noticeable What is described by the concept of perception? - correct answer how sensory info is interpreted and consciously experienced. Inattentional ----- refers to the failure to notice something that is completely visible due to a lack of...

INC4801 Assignment 2 (COMPLETE ANSWERS) 2024 (150797) - DUE 30 June 2024 ;100% TRUSTED workings, explanations and solutions. for assistance Whats-App.......0.6.7..1.7.1..1.7.3.9.......... Question 1 Read the extract below and answer questions that follow. Education MEC addresses Unisa Autism Seminar, advocating for Inclusive Education By Iednewsdesk On Apr 29, 2024 Presented by Unisa’s Department of Inclusive Education and Centre for Excellence on Disabilities, a seminar held on 23 April pro...

Astronomy Midterm 3 Exam - Questions and Answers (Complete Solutions) If you have a 100-watt light bulb, how much energy does it use each minute? A) 6,000 joules B) 6,000 watts C) 600 joules D) 600 watts E) 100 joules If a material is highly opaque, then it A) reflects most light. B) absorbs most light. C) transmits most light. D) scatters most light. E) emits most light. When light reflects off an object, what is the relation between the angle of incidence and the angle of reflection? A) angl...