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

Q: During a nuclear explosion, the core of the explosion reaches temperatures of about 10,000,000 K.…

A: We know that  wiens law   λmax = b / T b = 2.897×10−3 m⋅K T = Absolute temp in  K λmax = peak wave…

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: From the data shown in the image, the value of Oc is:

A: given θt=300. n0 =1 n1 =1.49 where n0 and n1  are refractive index of media. according to snells…

Q: What does it mean if it is stated that an object radiates blackbody radiation?

A: If an object is absorbing all the radiation falling on it then body is known as blackbody.

Q: Suppose you are working with a photosensitive material that you know is sensitive to green light,…

A: Required : Which light is will damage the material.

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: In the spectrum of a blackbody, the wavelength of peak intensity (a) decreases as temperature…

A: According to Wiens law product of the wavelength of peak intensity and corresponding Temperature is…

Q: - An electron of a stationary hydrogen atom passes from the fifth energy level to the ground level.…

A: Given  Final state , n1 = 1 Initial state , n2 = 5

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 glowing gas cloud shown below contains mostly hydrogen excited to emit photons. What kind of…

A: The above figure is an example of emission nebula, which are formed as a result of the interaction…

Q: Does an electron in an atom move at all?

A: Explanation: An electron in a stable atomic state does not move in the sense of waving through…

Q: Which of the following statements is TRUE regarding the different colors of light in the spectrum? *…

A: Here the correct options are (c) and  (d). That is the statements  • Light with a higher frequency…

Q: Is it necessary that that every black coloured objects should be considered a blackbody?

A: A perfect black body is a body that absorbs all the radiation that falls on it.

Q: the black body radiation emitted from a furnace peeks at a wavelength of 6.4 X 10^-6 m (0.0000064 m)…

A:

Q: Who was the first person to obtain the spectrum of sunlight?

A: In 1666, Sir Issac Newton performed prism experiment to obtain the spectrum of sunlight. In his…

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: How does the difference in energy levels relate to energy of the photon that is emitted by a…

A: The energy of a photo emitted during transition between two energy levels will be equal to the…

Q: If a star is moving towards us, what color will it appear?

A: a star is coming toward earth. we have to predict its color. CONCEPT: as star is coming toward us…

Q: If the atmosphere were twice as thick as it currently is (extending farther into space), what effect…

A: If the atmosphere were twice as thick as it currently is ( extending farther into space ) , the sky…

Q: Consider a bright beam of red light and a dim beam of blue light. The _______ beam carries more…

A: Wavelength of red light is less than the wavelength of blue light.

Q: A high-pressure gaseous object (e.g. the sun) will emit a consisting a wide range of wavelengths. *…

A: Given:  A high pressure gaseous object like sun A band of of waves which is in increasing or the…

Q: The hydra constellation in a distant sky island is moving away from Earth at a velocity of 6.12 ×…

A: Please see the answer in Step 2

Q: Discuss in brief the path of light through a droplet.

A:

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: 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: What is metastable state?

A: A metastate can be considered a kind of temporary energy trap or an intermediate stable stage of…

Q: Which color light is the result of a greater energy transition, red or blue?

A:

Q: Why was helium discovered in the sun’s spectrum before being observed on Earth? Why was hydrogen…

A: The spectrum from the sun was observed to have a bright yellow line in it and this line was earlier…

Q: A blue-hot star is about twice as hot as a red-hot star. But the temperatures of the gases in…

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: What happened as a result of the ultraviolet catastrophe? scientists determined that light behaved…

A: Ultraviolet catastrophe The ultraviolet catastrophe arises in when we try find out the how intensity…

Q: In the color wheel experiment, describe what happens to the colors of the color wheel while it is…

A: In the color wheel experiment, describe what happens to the colors of the color wheel while it is…

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: According to present theories of light, in some experiments light seems to be:

A: according to present theory of light .  light can behave like a particle as well as wave

Q: Why do lines in the emission and absorption spectra appear at the same wavelength?

A: An atom absorbs light energy and uses this imbided energy to excite its outermost electrons to…

Q: Why will body emit more radiation under similar conditions, a black body or a polished body?

A: According to the Stefan-Boltzmann law, the energy radiated is

Q: Do the electrons behave like waves?

A: Electrons are subatomic particles that hold an elementary charge of magnitude -1. The charge of an…

Q: Why is light is pure energy?

A: The light is only a packet of energy. The photon is known as the packet of energy and in general the…

Q: When astronomers look at the spectrum of the Sun, they noticed that the light from one edge is…

A:

Q: If the blue and orange light of a black body were blocked what colors would now be present in the…

A: blue and orange light of a black body were blocked

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.