Which has greater energy per photon: red or blue light?

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: Why is photoelectric emission not possible at all frequencies?

A: Given:-   Photoelectric emission not possible at all frequencies explain:-  Photoelectric emission…

Q: Of the choices below, photons of which color carry the most energy?     orange     blue…

A: Ques: Of the choices below, photons of which color carry the most energy?     orange…

Q: Which of the following statement is correct about a photon?

A:

Q: What can be said about the relative temperatures of whitish-yellow, reddish, and bluish stars?…

A: Bluish stars are the hottest among the stars.

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

A:

Q: A 2.0 - kg object falls from a height of 5.0 m to the ground. If the change in the object’s kinetic…

A: Calculating the number of photons required:

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: Choose the BEST answer to the following: Planck’s constant can be found by dividing the energy of a…

A: The equation for the energy of photon is given by,

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: Why is the photon theory supported by the fact that light below a certain frequency, when striking a…

A: In the photon theory of light, the energy of photon is given as, E=hf Here, h is the Planck's…

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

A:

Q: An electron and a proton travel at the same speed. Which has more momentum? Which has the longer…

A:

Q: How do the surface temperatures of reddish, bluish, and whitish stars compare?

A:

Q: What is the principal difference between X-ray and light?

A: Basically X ray are the same thing as visible light rays. Both are wavelike forms of electromagnetic…

Q: Can X-rays cause photoelectric effect?

A: In photo electric effect, the the falling lights ejects the electron from the metal surface. The…

Q: Why is the photoelectric effect always accompanied by a secondary process.

A: Quantum mechanics is a field of physics that studies the behavior of small microscopic particles and…

Q: We speak of photons of red light and photons of green light. Can we speak of photons of white light?…

A:

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

A:

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: Name the phenomenon which shows the quantum nature of electromagnetic radiation.

A: When light of appropriate frequency is incident on a surface, electrons are liberated from the…

Q: What Is The Photoelectric Equation?

A: To emit an electron from the metal surface the photon needs energy which is equal to the sum of the…

Q: During the photoelectric effect, light knocks electrons out of metals. So why don’t the metals in…

A: During the photoelectric effect, light knocks electrons out of metals.

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: Why does a fireplace poker appear black when not in the fire and red, yellow, or white when left in…

A:

Q: Is a photon absorbed by atoms when its energy is less than the energy difference between orbits?

A: Given: energy of photon is less than the energy difference between the orbits To find: Is that…

Q: One electron travels twice as fast as another. Which has the longer wavelength?

A: Equation shows that as speed of electron increases, wavelength decreases.

Q: Two photons have the same wavelength. They also have the same

A:

Q: In what part of the EM spectrum would a photon of energy 1.9 x 10 J be found? O radio wave microwave…

A:

Q: Light of wavelength 5.7 x 107 injects photo electrons from the surface of a clean metal plate. A…

A: Required :: What will happen if the intensity of the light is increased.

Q: Why are ultraviolet photons more effective at inducing the photoelectric effect than photons of…

A:

Q: What is the energy of a photon of wavelength 5.50 x 10-7 m, in Joules? [?] 10[²] J X

A: Given: wavelength (λ)= 5.50 x 10-7m = 550 nmTo find: Energy of this photon(E)…

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: except for photoemission, is there any other term for photoelectric effect?

A: Answer:-  The photoelectric effect is the emission of electrons when electromagnetic radiation, such…

Q: Sunlight, considered to be white, actually appears to be a bit yellow. Why?

A: The phenomenon in which the light rays deviates from its original straight path by striking  on…

Q: What evidence can you cite for the wave nature of light? For the particle nature of light?

A: Wave nature and the particle nature

Q: Ultraviolet light causes sunburns, whereas visible light, even of greater intensity, does not. Why…

A: The frequency of Ultraviolet light is greater than the visible light. The frequency of…

Blackbody

Q.5 A blackbody radiates how much energy when the temperature of the body is elevated?