Description : Name the spectral series which appear in the region of electromagnetic spectrum. (a) Visible region (b) UV region (c) Far IR region
Last Answer : Ans: (a) Balmer Series (b) Lymen Series (c) Pfund Series
Description : Pick up the correct statement from the following: (A) A graphical representation of spectral reflectance verses the various growth stages of a crop, depicts a phonologic pattern B) The changes in ... characteristic of the object which helps in the identification of the object (D) All of these
Last Answer : Answer: Option D
Description : Which light has the largest wavelength in the visible spectrum ?
Last Answer : The largest wavelength of the visible spectrum is red light.
Description : Which light has the shortest wavelength of visible spectrum ?
Last Answer : The smallest wavelength of the visible spectrum is purple light.
Description : Hydrogen atom electron is excited to n = 4 state , in the spectrum of emitted radiation , number of lines in the ultravoilet and visible regions are r
Last Answer : Hydrogen atom electron is excited to n = 4 state , in the spectrum of emitted radiation , number of lines in the ... 1 , 3 C. 2 , 3 D. 3 , 2
Description : Is the width of the range of wavelengths emitted by the light source a. Bandwidth b. Chromatic Dispersion c. Spectral width d. Beamwidth
Last Answer : c. Spectral width
Description : Is the width of the range of wavelengths emitted by the light source ∙ a. Bandwidth ∙ b. Chromatic Dispersion ∙ c. Spectral width ∙ d. Beamwidth
Description : Pick out the wrong statement pertaining to 'green house' for the plants. (A) 'Green house' (made of glass) allows visible sunlight (i.e., short wavelength solar radiation like ultra-violet rays) ... ' thereby warming up the earth's surface (D) 'Green house' is colder than the outside atmosphere
Last Answer : (D) 'Green house' is colder than the outside atmosphere
Description : Purkinje's shift: a. refers to the transition of retinal sensitivity between photopic and scotopic vision b. refers to the shift in the spectral sensitivity of the human retina toward shorter wavelengths of light c. accounts for blue colour appearing brighter at dusk d. all above
Last Answer : all above
Description : What is the wavelength of visible spectrum? -General Knowledge
Last Answer : The answer is '3900-7600 A'
Last Answer : answer:
Description : In the visible spectrum which colour has the shortest wavelength
Last Answer : Violet
Description : What is the wavelength of visible spectrum?
Last Answer : – 3900-7600 A
Description : What is the wavelength of visible spectrum? (1) 1300 A° -3000 A° (2) 3900 A° - 7600 A° (3) 7800 A° - 8000 A° (4) 8500 A° - 9800 A°
Last Answer : (2) 3900 A° - 7600 A° Explanation: The visible spectrum is the portion of the electromagnetic spectrum that is visible to (can be detected by) the human eye. Electromagnetic radiation in this range of wavelengths ... from about 390 to 750 nm in terms of angstrom it is in between 3900 - 7600 A°.
Description : Wavelength of visible spectrum is –
Last Answer : 3900 A0 – 7600 A0
Last Answer : 3900-7600 A
Description : 1. What is the wavelength of visible spectrum? 2. The fragments of which comet system collided with Jupiter in July 1994 ? 3. The National Housing Bank was set up in India as a wholly ... in which countries? 20. The Portuguese traveller, Nuniz visited Vijayanagar during the reign of which rular?
Last Answer : Answer : 1. 3900-7600 A 2. Shoemaker-Levy 9 3. Reserve Bank of India 5. Practice of land grants 6. Chimpanzee 7. From civil cases only 8. Strontiur and barium 9. Hungary 10. Rajaraja 11. ... The Centre 17. Because of scattering of light 18. Lowest average costs 19. China and India 20. Achyuta Raya
Description : What is the wavelength of visible spectrum ? (1) 1300 A°–3000 A° (2) 3900 A° – 7600 A° (3) 7800 A° – 8000 A° (4) 8500 A° – 9800 A°
Last Answer : 3900 A° – 7600 A°
Description : Light rays that are emitted simultaneously from an LED and propagated down an optical fiber do not arrive at the far end of the fiber at the same time results to ∙ A. intramodal dispersion ∙ B. pulse length dispersion ∙ C. modal dispersion ∙ D. wavelength dispersion
Last Answer : D. wavelength dispersion
Description : What parameter of light detector determines the range or system length that can be achieved for a given wavelength? ∙ a. Transit time ∙ b. Spectral response ∙ c. Dark current ∙ d. Responsitivity
Last Answer : ∙ b. Spectral response
Description : When the electron of a hydrogen atom jumps from the n=4 to the n=1 state , the number of all pos - sible spectral lines emitted is :-
Last Answer : When the electron of a hydrogen atom jumps from the n=4 to the n=1 state , the number of all pos - sible spectral ... is :- A. 15 B. 6 C. 3 D. 4
Description : An electron in an excited hydrogen atom acquired an energy of 12.1 eV. To what energy level did it jump? How many spectral lines may be emitted in the
Last Answer : An electron in an excited hydrogen atom acquired an energy of 12.1 eV. To what ... to lower energy level? Calculate the corresponding wavelengths.
Description : The Doppler Effect predicts that the spectrum of light from a visible body moving AWAY from the Earth will experience a shift in frequency when viewed from Earth. This particular shift is known as the: w) Blue shift x) Neutral shift y) Red shift z) Dirac shift
Last Answer : ANSWER: Y -- RED SHIFT
Description : The method of determining the bandwidth of any processing system is ______. A. Bandwidth analysis B. Frequency spectrum C. Spectral analysis D. Frequency analysis
Last Answer : C. Spectral analysis
Description : Three spectral series, paschen series, Brackett series, Pfund series are found in the a) ultraviolet region b) visible region c) infrared region d) a & b region
Last Answer : c) infrared region
Description : The law that states “When visible light of high frequency electromagnetic radiation illuminates a metallic surface, electrons are emitted” is known as ____________. ∙ A. Einstein law of photon ∙ B. Marconi’s law ∙ C. Maxwell’s law ∙ D. Plank’s law
Last Answer : D. Plank’s law
Description : “When visible light of high frequency electromagnetic radiation illuminates a metallic surface, electrons are emitted”
Last Answer : Plank’s law
Description : What name is given to the visible light emitted when charged particles pass through a transparent medium with a velocity exceeding the velocity of light in the medium?
Last Answer : ANSWER: CERENKOV RADIATION
Description : The range of wavelength values that a given photodiode will respond. ∙ A. spectral response ∙ B. permeance ∙ C. dark current ∙ D. reluctance
Last Answer : A. spectral response
Description : What is the typical wavelength of light emitted from epitaxially grown LEDs? ∙ a. 840 nm ∙ b. 490 nm ∙ c. 480 nm ∙ d. 940 nm
Last Answer : ∙ d. 940 nm
Description : What is the wavelength of red light emitted by a helium-neon laser? w) 122 nanometers x) 633 nanometers y) 2.43 picometers z) 1.37 micrometers
Last Answer : ANSWER: X -- 633 NANOMETERS (actually 632.8 nm)
Description : How much of the energy the earth gets from the sun is in the visible spectrum?
Last Answer : Here is one chart that I have found. It does not cover the entire spectrum, but it shows that a lot of visible light is received compared to other ranges of light (the height of the graph). Even ... of visible light, since the vast majority of the spectrum is not visible (the width of the graph).
Description : Regarding LiFi choose the correct statement i) LiFi uses visible light to transmit data ii) Visible light spectrum is larger than the radio spectrum -General Knowledge
Last Answer : Both i and ii Explanation: Li-Fi uses visible light. This indicates that Li-Fi has a wider range of available frequencies as the visible light spectrum is 10,000 times larger than the entire radio spectrum.
Description : What is the comparison between the size of the visible light spectrum and the size of the electromagnetic spectrum?
Last Answer : Need answer
Description : Which basic property determines a colored light's placement on the spectrum of visible light?
Last Answer : Most of the spectrum charts that I have seen are listed inwavelengths, particularly nanometers (nm). Where 1 nm = 1x10^-9m.
Description : The green pigment called ________________________ reflects most of the green light in the visible spectrum.?
Last Answer : Zygote
Description : Remote controls use invisible light of frequency just below the visible range. This part of the electromagnetic spectrum is called?
Last Answer : IR Infra red rays We all almost use An IR remote controller to use operate a TV OR DTH OR any other electronics Gadgets in out home but ever you think how this process works means when you ... then a signal corresponding to pressed key will transmit and carrying a command which hit to the IR Receiv
Description : Most fiber optic light sources emit light in which spectrum? ∙ A. visible ∙ B. infrared ∙ C. ultraviolet ∙ D. X-ray
Last Answer : B. infrared
Description : Which of the following colors is not found in the visible light wave spectrum? ∙ a. Red ∙ b. White ∙ c. Orange ∙ d. Yellow
Last Answer : b. White
Description : Most fiber-optic light sources emit light in which spectrum? ∙ a. Visible ∙ b. Infrared ∙ c. Ultraviolet ∙ d. X-ray
Last Answer : ∙ b. Infrared
Description : It is the relative purity or strength of the spectral colour.
Last Answer : Ans. Chroma
Description : What is the highest order spectrum which may be seen with monochromatic light of wavelength 5000 A0by means of diffraction grating with 5000 lines/cm? A. 2 B. 4 C. 8 D. 16
Last Answer : B. 4
Description : The line with smallest wavelength in the Balmer series in the hydrogen spectrum will have the frequency :-
Last Answer : The line with smallest wavelength in the Balmer series in the hydrogen spectrum will have the frequency :- A. `8. ... 1)` D. `8.05xx10^(13)s^(-1)`
Description : In order to obtain spectrum from the emitted radiation, the atomic gas or vapour must be excited at a) much less than atmospheric pressure b) much high than atmospheric pressure c) atmospheric pressure d) high pressure and temperature
Last Answer : a) much less than atmospheric pressure
Description : If a ray of light has a wavelength of 465 nanometers, what shade of visible light does it produce?
Last Answer : Blue
Description : What color is the shortest wavelength of visible light ?
Last Answer : The shortest wavelength of visible light is purple.
Description : What is the wavelength of visible light ?
Last Answer : : Light wavelengths range from 0.00038 mm to 0.0008 mm.
Description : The danger signals are red while the eye is more sensitive to yellow because – (1) absorption in red is less than yellow and hence red is visible from a distance (2) scattering in yellow light is less than red (3) the wavelength of red light is more than yellow light (4) none of the above reasons
Last Answer : (3) the wavelength of red light is more than yellow light
Description : An electron microscope gives higher magnification than an optical microscope, because: (1) It uses more powerful lenses (2) the velocity of electron is smaller than that of visible (3) the ... particles (4) the wavelength of electrons is smaller as compared to the wavelength of visible light
Last Answer : (4) the wavelength of electrons is smaller as compared to the wavelength of visible light Explanation: An electron microscope uses a beam of electrons to illuminate a specimen and produce a ... photons. Magnification is the process of enlarging something only in appearance, not in physical size.