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

Q: Consider a 4.6-cm microwave photon. What is the momentum of the photon in kilogram meters per…

A: Momentum of Photon P= 1.44 × 10-32 Kg.m/s   We know momentum of photon is given by  Momentum  of…

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

A:

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: Calculate the momentum of a photon of yellow light of wavelength 5.80 x10-7m

A: wavelength = 5.80 x10-7m

Q: A portable radio transmitter has to operate at a temperature from -5°C to 35 °C. If its signal is…

A: Transmission Frequency   Transmission Frequency means the frequency of a radio wave transmitted from…

Q: Using conservation principles, prove that a photon cannot transfer all its energy to a free…

A: To solve this case, conservation of energy and momentum is to be examined. Let , 'lambda' be the…

Q: A nuclear bomb at the instant of explosion may be approximated to a black- body of radius 0.3 m with…

A: Given data:  Emissivity of block body (ε) = 1 Radius (r) = 0.3 m Surface temperature (T) = 107 K…

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: What is the energy of a photon of violet light with a frequency of 7.40x 1014s-1?

A: Given The frequency of the violet light is f=7.40×1014 s-1. The energy of a photon of violet light…

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: 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=143×108 m/s Mass of proton, mp=1.67×10-27 kg Planck's…

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: If the emitted radiation from a star has a wave length of maximum power at 600 nm what is the…

A:

Q: temperature of an object resembling a blackbody is raised from 10 K to 300 K. How much does the…

A: According to Stefan-Boltzmann law, the total radiant energy(E) emitted from an object is…

Q: A 2.0-kg object falls from a height of 5.0 m to the ground. If all the gravitational potential…

A:

Q: What is photon?

A:

Q: A piece of iron is heated with a torch to a temperature of 858 K. How much more energy does it emit…

A: The Rate of energy radiated; P=AseT4 so, Energy α T4

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: 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: If the temperature of a blackbody increases, the peak wavelength will increase as well. True or…

A: If the temperature of a blackbody increases, the peak wavelength will increase as well

Q: Calculate the momentum of a photon of frequency 2.5 x 1015 m/s and type in just the value of p. Hz…

A: Given: Frequency of photon f = 2.5 × 1015 Hz We have to calculate the momentum of a photon.

Q: The inability of classical theory to explain the frequency distribution of a blackbody was called…

A: Ultraviolet Catastrophe (or Rayleigh-Jeans catastrophe) predicts an ideal blackbody at thermal…

Q: Explain the term Colliding beams?

A: COLLIDING BEAMS:                        Colliding beam or collider  is a particle accelerator used…

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: If the temperature of a black body is raised from 300K to 600K by what factor the rate of emission…

A: Write the expression for the rate of emission to calculate the rate of emission of a black body…

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: As the temperature of an object increases, the wavelength of the brightest light emitted increases…

A:

Q: how much kinetic energy and speed will the free electron have?

A: Consider that the light beam has a frequency of 1014Hz. The energy of photon is Since the electron…

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: assume you are a perfect black body and Temp=310K. At what rate, in watts, do you radiated energy?…

A: Solution:-

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: Two stars, both of which behave like ideal blackbodies, radiate the same total energy per second.…

A:

Q: If I cut a wavelength to 1/3 its original length, How would the energy of this photon change?

A:

Q: Albert Einstein was awarded the Nobel Prize in physics for which of the following? Theory of…

A: All of three paper published at the time was a groundbreaking research. Although theory of…

Q: The radiation emitted from a small hole in a furnace is a. microwave. b. x-ray. c. infrared. d.…

A: Black Body Radiation: The black body is theoretically an ideal body that is supposed to receive all…

Q: Find the diffraction angle (in degrees) when a photon impacts a stationary electron with an initial…

A: Given value--- initial wavelength = 4 pm. final wavelength = 6.7 pm. We have to find--- Angle of…

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

Nature of light

Light is transverse and electromagnetic radiation that exhibits the properties of a wave as well as a particle. For this reason, light is said to have a “dual nature.”