If electrons are made to vibrate to and fro at a few hundred thousand hertz , radio waves are emitted. What class of waves is emitted when electrons are made to vibrate to and fro at a few million billion hertz?

Q: Is a light a particle, wave or a combination of both? Give examples

A: Like any other wave, the light also goes through reflection and refraction. Therefore it has…

Q: In the wave picture of light, intensity of light is determined by the square of the amplitude of the…

A: The intensity of light is measure of brightness of light.

Q: Shortwave radio is broad between 3.50 and 29.7MHz. To what range of wavelengths does this…

A: The wavelength corresponding to a frequency of 3.50MHz is

Q: If atoms of a substance absorb ultraviolet light and emit red light, what becomes of the missing…

A: The missing energy may become light of other colors or invisible infrared light.

Q: Based on the text you read, showing that electrons can behave like waves?

A:

Q: Calculate the wavelength of electromagnetic energy of 2.26eV. O 5.50e-7m O 7.20e-7m O 2.45e-7m O…

A:

Q: The higher the energy of a photon, the ____ its wavelength. Longer Shorter Cannot tell

A:

Q: What happens to an electron when a photon hits it?

A: As per Compton effect, when a photon strikes an electron at rest, some of its energy is lost to the…

Q: A beam of white light has the same intensity at all visible-light wavelengths. Does the beam contain…

A: The expression for intensity (I) of photon is given as: I=NhcAλ Here, N is the number of photons, λ…

Q: Which interact more with high frequency light- small particles or large particles?

A: Light can interact with matter in three ways: absorption, transmission and reflection

Q: The blackbody radiation emitted from a furnace peaks at a wavelength of 5.1 10-6 m (0.0000051 m).…

A: Apply wiens law

Q: A quanta (or "chunk") of light is called a(n) O Electron O Neutron O Photon O Proton

A: According to plank light travels in the form of energy pockets or quanta

Q: Compared to radio waves (low frequency light), gamma rays (high frequency light) have... (choose all…

A:

Q: Calculate the de Broglie wavelength of a proton travelling at the speed of light.

A: Given: Speed of proton vp=14speed of light=143×108m/s, Mass of proton mp=1.67×10-27 kg. Required: De…

Q: The wavelength of a photon determines its (select two answers) Brightness Speed Color Energy

A: Solution

Q: Light behaves as Oa particle O both a wave and a particle neither a wave nor a particle a wave

A:

Q: Identify the photon in each pair with the greater energy.a. orange light or violet lightb. infrared…

A: The photon is an exchange particle between different electromagnetic radiations. Planck's quantum…

Q: An electron is accelerated through a potential difference of 64 volts. What is the de-Broglie…

A: Voltage, V=64 V De-Broglie wavelength, λ=h2meV

Q: How does the frequency of a radio wave compare to the frequency of the vibrating electrons that…

A: When electron set into vibration, magnetic field will produce. Again, as the electron is having…

Q: Why is a red-hot object cooler than a white-hot one of the same material?

A:

Q: Which has the greatest energy- a photon of infrared light, of visible light or of ultraviolet light?

A:

Q: If we double the frequency of light, we double the energy of each of its photons. If we instead…

A:

Q: What causes electrons in atoms to emit energy after absorbing it? becoming electromagnetic…

A: To explain : The reason due to which electrons in atoms emit energy after absorbing it

Q: A laser pointer emits photons of only one wavelength. With that in mind, which of the following…

A: Out of visible range of  electromagnetic spectrum photons corresponding to color  VIBGYOR  can be…

Q: Why won’t a very bright beam of red light impart more energy to an ejected electron than a feeble…

A: Violet has more frequency than red .Energy of electromagnetic radiation is directly proportional to…

Q: What happens when an electron collapses back to its ground state from an excited state?

A: To explain: What happens when an electron collapses back to its ground state from an excited state?

Q: photon torpedo in space has a mass of 10

A: energy released = 7.3*106 Jc = 3*10^8 m/s mass energy equivalence M =E / c^2 M= 0.8123 kg hence…

Q: Which has more energy—a photon of visible light or a photon of ultraviolet light?

A:

Q: What happens to an electron when it emits a photon?

A: When an electron jumps from one energy level to another energy level which is lower than the…

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: Light of wavelength 5 EXP-7 m consists of photons with an energy of (c=3 EXP8 m/s) a. 1 EXP-48 J b.…

A:

Q: A very bright source of red light has much more energy than a dim source of blue light, but the red…

A: Red light and blue light

Q: Calculate the de Broglie wavelength (in meters) of a single poton in a beam traveling at 65% the…

A: Given: Mass of proton , m = 1.6726×10-27 kg Speed, v = 65% of speed of light. To calculate: de…

Q: Ultraviolet (UV) paint will absorb ultraviolet light and re-emit it at a longer wavelength. O is…

A: We need to choose the correct option for UV paint.

Q: High-power lasers are used to compress a plasma (a gas of charged particles) by radiation pressure.…

A: The expression for the pressure is,

Q: An electron is accelerated through a potential difference of 100 volts. What is the de-Broglie…

A: Given,  Potential difference ( V ) = 100 volts

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.