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

Q: Which color of light has the higher energy per photon, violet or red?

A: The energy of photon be defined as, E=hν

Q: At 101°K the black body radiation weighs per cubic centimetre... 10A-6 gram O 10^-16 gram

A: Given Temperature (T)=1010  K

Q: A red ball is red because it has absorbed red light. True False

A: False.

Q: If a cannonball and a BB have the same speed, which has the longer wavelength?

A: Given: Cannon ball and BB ball

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: not an application of photoelec O a. in chromatiser O b. in television camera O c. in solar…

A: Option a ) Chromatiser   Photoelectric effect s not used in chromatiser  In chromatiser adsorption…

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: All objects radiate energy. Why, then, are we not able to see all the objects in a dark room?

A: All the objects emit electromagnetic radiation. Our eyes can see visible lights only, which have…

Q: What is spectral properties of indigo?

A: The visible light spectrum is the segment of the electromagnetic spectrum that the human eye can…

Q: Assume an object is emitting blackbody radiation. If the Kelvin temperature of an object is doubled,…

A:

Q: If a butterfly causes a tornado, does it make sense to eradicate butterflies? Defend your answer.

A:

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: ㅋ multiplying through out by 7. 18.2 (11.9 13 + 15) + 7×11.2 1₂ = 7x9 294.98 13 - 210 13 - 210…

A:

Q: Calculate the energy in corresponding to light of wavelength 45nm.

A: Given : λ= 45 nm = 45 x 10-9 m We need to calculate the energy for the given wavelength E = hcλ…

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: Find the energy of a photon (of violet light) with a frequency of 6.8×104 Hz.

A: The energy of a photon is given by  E = h f  where, h is the Plank's constant and f is the…

Q: Lamp black and platinum black are used as perfect black body one for the absorption of heat…

A: an ideal black body , which absorbs all types of radiations falls on it. this is true for the…

Q: What is absorbing power and reflecting power of a perfect black body?

A: The body which absorbs all the incoming lights without reflect them back is known as perfect black…

Q: Why does a sodium street lamp give off a different color light than a neon light?

A: Sodium street lamp gives off yellow color, while a neon light gives of a red color.

Q: Define an idealized blackbody

A: As per bartelby guidelines, only one question can be solved, kindly post the others separately.

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 blackbody radiator (none of the choices) does not absorb thermal radiation. emits radiation only…

A: First option is correct.

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: Have you ever watched a fire and noticed that the burning of various materials often produces flames…

A: The color of the flame depends on several factors, and the most important among them are black body…

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: 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: What is metastable state?

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

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 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: According to Huygens' principle, light is a form of O particle rays wave radiation O None of these

A: When a light goes from air to a denser medium, the wavelength of the light decreases, and the speed…

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: 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: 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: Why can atoms not be seen with a powerful optical microscope?

A: Atoms cant been seen with an optical microscope because the size of the atoms is smaller than the…

Q: The photoelectric effect can be understood on the basis of a. the electromagnetic theory of light b.…

A:

Q: If the average temperature of the surface of the Sun is roughly 5780 Kelvin, the radiation emitted…

A:

Q: At 101°K the black body radiation weighs per cubic centimetre...... 10^-16 gram O 10^-6 gram O 1 ton…

A: Energy density can be given by Stefan Boltzmann law u=σT4cwhere u is energy density σ is Stefan…

Q: Since every object has some temperature, every object radiates energy. Why, then, can’t we see…

A: Every object radiates energy

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.