What is diffraction - Study guides, Class notes & Summaries

NLN-PAX RN Combined Set Exam Questions With Verified Answers What deficiency causes night blindness - ANSWER Vitamin A A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide containing a large number of swimming paramecium. Under this condition, which of these behaviors of the paramecia will be observed? - ANSWER They eventually will all swim away from the ammonium hydroxide The process of nuclear cell division in the cell reproduction of plants differs from ...

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...

Chapter 1 - Chemical Foundations 1. Consider the element indium, atomic number 49, atomic mass 114.8 g. The nucleus of an atom of indium-112 contains: a. 49 protons, 63 neutrons, 49 electrons. b. 49 protons, 49 neutrons. c. 49 protons, 49 alpha particles. d. 49 protons, 63 neutrons. e. 49 protons, 112 neutrons. ANSWER: d POINTS: 1 2. A hypothetical element consists of two isotopes of masses 78.95 amu and 80.95 amu with abundances of 32.9% and 67.1%, respectively. What is the average a...

ATI TEAS Test Science Questions and Answers(Full test bank) An organism with chloroplasts in its cells is probably. a. a heterotroph b. an autotroph c. an herbivore d. a primary consumer - answerB: Organisms that have chloroplasts in their cells carry on photosynthesis and are therefore autotrophs. Autotrophs make their own food. What property of water allows someone to fill a glass slightly above the rim without the water flowing over? a. specific gravity b. capillarity c. opacity ...

ASTRO MODULE 7what's the UV catastrophe - correct answer a black body would emit infinite amount of energy what are photons - correct answer quantized packet of energy how does light arrive to our eyes - correct answer in groups of a whole number of photons do photons carry a lot of energy - correct answer no when is the wave nature of light more obvious - correct answer when the individual photons have a wavelength larger than a human what else does wave particle duality apply t...

Astronomy 6 Exam Questions Correctly Answered. Suppose the angular separation of two stars is smaller than the angular resolution of your eyes. How will the stars appear to your eyes? - CORRECT ANSWER The two stars will look like a single point of light What is a principal advantage of CCDs over photographic film? - CORRECT ANSWER CCDs capture a much higher percentage of the incoming photons than does film Order the following in order of increasing efficiency of detecting photons of vis...

what absorbs energy from the sun, and its where potosynthesis occurs? chloroplast what is the pain pigment that captures light energy during photosynthesis? chlorophyll Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:00 Full screen What is made up of nucleotides, produces protien, and is DNA, RNA? nucleic acids Biomolecules are synthesized by the process of ? and broken apart by the process of ? dehydration ...

How is luminescence important for diamond identification? A. Indicates geographic origin B. Reveals presence of defects C. Confirms superdeep formation D. Separates pink from red diamonds - Answer-B. Reveals presence of defects How does light travel? A. Waves B. Bursts C. Right angles D. Curves - Answer-A. Waves What describes the distance between two high points of a light path? A. Node B. Radius C. Velocity D. Wavelength - Answer-D. Wavelength What is the main cause of color in ...

TEAS Test Science Updated Questions and Answers An organism with chloroplasts in its cells is probably. a. a heterotroph b. an autotroph c. an herbivore d. a primary consumer - answerB: Organisms that have chloroplasts in their cells carry on photosynthesis and are therefore autotrophs. Autotrophs make their own food. What property of water allows someone to fill a glass slightly above the rim without the water flowing over? a. specific gravity b. capillarity c. opacity d. surface ...

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 narr...