What do you understand by the invisible spectrum?

Q: Calculate the radiance of a 4,456-K blackbody at a wavelength

A: Given data: Temperature, T=4456 K Wavelength, λ=632 nm=632×10-9m Known data: Planck's constant,…

Q: Why Sun is Yellow?

A: Sun emits most strongly in the green-yellow-red part of the spectrum. And if  green is added to red,…

Q: 00s 000E + 0osz 0007 + 000L + 006 008 Infrared 004 009 Ultraviolet A measure of the intensity…

A: 9) The curve peak intensity appears at a wavelength around 1500 nm, which is in the infrared region…

Q: What do you mean by de Broglie wavelength?

A: The wavelength associated with the moving matter is called de Broglie wavelength.

Q: What is Emission spectrum and absorption spectrum?

A: Emission spectrum: When energy is absorbed by electrons of an atom, electrons move from lower energy…

Q: What is the wavelength of the photon shown? * - lev -8eV

A: A electron jumps from one energy level to another . E2 = -8 eV E1 = -1eV  To find = Wavelength of…

Q: What is the shortest wavelength present in the Paschen series of spectral lines?

A:

Q: Calculate the third longest wavelength in the Balmer series. What color is this light? O violet blue…

A:

Q: which of the ff. is visible? a. wave with 90700000 Hz b. wave with 3.204 x 10^-19 J photon energy…

A: Visible light ranges from wavelength λ = 380 Ao  to  λ = 750 Ao  Now as the speed of the light is…

Q: Calculate the wavelengths associated with an electron and a proton, each travelling at 9.0% of the…

A: Given data:  Speed of electron and proton  = 9.0 % of the speed of the light Required: The…

Q: One beneficial effect of ultraviolet rays is A Cancer B Sunburn C Fluorescence

A: Ans: C) Fluorescence Option A and B are incorrect as these are not beneficial effects of ultraviolet…

Q: What is the wavelength of the photon shown? * - leV -8eV

A: Energy of initial level = -2 eV Energy of final level = -8 eV Energy difference between two…

Q: Which of the following statement is correct about a photon? (Is the answer I selected correct?)…

A:

Q: What can you say about the x-ray spectra?

A: A German physicist, Wilhelm Roentgen discovered x-rays in 1901. For discovery of x-rays he won Nobel…

Q: Describe the physical properties of light and explain the relationshipbetween a wavelength of light…

A: The physical properties of light are:  1. Speed  The light travels with the greatest speed of…

Q: Narrow line spectra are emitted by

A: To discuss narrow line spectra are emitted by which kind of atom.

Q: What is Luminance? Also give its formula.

A: The brightness of light radiation which appears to the human eye after its getting reflected from…

Q: The purpose of choke in tube light is?

A: When the switch is ON, in a tube light choke is nothing but the coil/ballast ( inductor) which is…

Q: 6. The characteristic X-rays have - wavelength and intensity ---- -- than the white radiation. a)…

A: White light is comprised of all the frequencies and wavelengths of the visible light spectrum within…

Q: Is it possible for the first-order spectrum to overlap the second-order spectrum? Explain, assuming…

A: To determine: Is it possible for the first-order spectrum to overlap the second-order spectrum?…

Q: How does an absorption spectrum differ in appearance from an emission spectrum?

A:

Q: What do you mean by infrared radiation (IR)?

A: Infra red radiation also known as infra red is one of the region in the electro…

Q: -0.1489 2 9.8ms 2 (Vocos (49.39°)) ²

A: The given equation                       -0.1489 = 9.8m/s22vocos49.39°2 Here vo can be computed from…

Q: If electrons are made to vibrate to and fro at a few hundred thousand hertz , radio waves are…

A: Since the frequency of the vibration of the electrons is a few hundred thousand hertz. The emission…

Q: What is the difference between a waveform and a spectrum?

A: Wave form of a signal is the shape of its graph as a function of time, independent of its time and…

Q: Which has the lower energy quanta—red light or blue light? Radio waves or X-rays?

A: Energy quanta of a monochromatic beam of light is given as,

Q: Would a beam of protons in a “proton microscope” exhibit greater or less diffraction than electrons…

A: It is known that protons are nearly 2000 times heavier than the electrons.

Q: What is a photoresist?

A: A unique subset of stimuli-responsive materials that alter in response to light exposure are…

Q: Elements at the Sun's surface are revealed in the solar spectrum. Are the lines in the spectrum…

A: Elements of the Sun’s surface are revealed in the solar spectrum.

Q: Write the name of spectral series of hydrogen atom, which lies in visible range of electromagnetic…

A: When an atom comes down from some higher energy level to the second energy level (n1 =2  and…

Q: What would be its wavelength

A:

Q: How is the wavelength of light correlated with its energy content?

A: The energy of light can be expressed as E=hν

Q: Distinguish between monochromatic light and sunlight.

A: Monochromatic light refers to light waves of same wavelength.

Q: Wavelength is measured in what units?

A: Wavelength is a term that is used to define the distance between the reference point on an adjacent…

Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.