An FM radio transmitter has a power output of 150 kW and operates at a frequency of 99.7 MHZ. How many photons per second does the transmitter emit?

Q: The power of a red laser (A = 630 nm) is 2.00 watts (abbreviated W, where 1 W = 1 J/s). How many…

A: Given that:-Wavelength of red laser light, λ=630 nmPower of the laser, P=2.0 WattsWe know thatNumber…

Q: The intensity of the sunlight reaching the Earth's surface is 1268 W/m2 and the average wavelength…

A: Given:- The intensity of the sunlight reaching the Earth's surface is 1268 W/m2 and the average…

Q: The wavelengths of light emitted by a firefly span the visible spectrum but have maximum intensity…

A: Given: Power = 1.2 m W Lasting time = 100 m s

Q: The human eye is a complex sensing device for visible light. The optic nerve needs a minimum of…

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Q: Fresh out of university you've been hired to do some photoelectron spectroscopy. You have a lamp…

A: The maximum kinetic energy of the emitted electron is KEmax=hν-φeV=hcλ-φeV+φ=hcλeV+φhc=1λ

Q: How many x-ray photons per second are created by an x-ray tube that produces a flux of x-rays having…

A: Power of x rays = 1.21 W Average energy per photon = 80 keV

Q: photons are emitted e

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Q: The power of a red laser (λ = 630 nm) is 2.75 watts (abbreviated W, where 1 W = 1 J/s). How many…

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Q: A boy walks in the evening in the park with a flashlight with a power of 25 W . The flashlight bulb…

A: Power of flashlight (P) = 25 W wavelength of photons = 490 nm

Q: How many photons are contained in a flash of green light (525nm) That contains 189KJ of energy?

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Q: For the electron with a de broglie wavelength of 3.5 nm, what is the kinetic energy (in eV)?

A: We will first write an expression for kinetic energy of electron in terms of its debroglie…

Q: light beam of wavelength 460 nm and intensity 180 W/m^2 shines on a target of area 1.69 m^2 for a…

A: We have givenThe wavelength is 460 nmintensity is 180 W/m2Area is1.69 m2duration is 4.25 sWe have to…

Q: A 76-kW AM radio station broadcasts at 1000 kHz. How many photons are emitted each second by the…

A: The wavelength of light and energy per unit photon are inversely related. The energy of a photon is…

Q: How many photons per second are emitted by the antenna of a microwave oven, if its power output is…

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Q: Suppose you need to image the structure of a virus with a diameter of 50 nm. For a sharp image, the…

A: Given Data:De-Broglie wavelength To Determine:The kinetic energy of the electron.

Q: A 633 nm helium-neon laser puts out 4.00 W of power with a beam 5.70 mm in diameter. The beam is…

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Q: A study of photosynthesis in phytoplankton in the open ocean used short pulses of laser light to…

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Q: The threshold of dark-adapted (scotopic) vision is 4.5 x 10-11 W/m² at a central wavelength of 500…

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Q: A 100W sodium lamp radiates energy uniformly in all directions. The lamp is located at the centre of…

A: Part (a) : The wavelength of sodium light is 589 nm.  The Energy of a photon is,

Q: if all the energy from a 93 W light bulb ?is emmited on average at 530.0 nm, how many 530.0 nm…

A: Given Data:- Power of the bulb is P=93 W Wavelength of each photon is  λ=530.0 nm  =530 nm×10-9 m1…

Q: The energy flux of sunlight reaching the surface of the earth is 1.388 × 103 W/m2. How many photons…

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Q: A beam of light with wavelength 6500 Angstrom and carrying the energy 105 ergs per second falls on a…

A: Let E0 denotes the energy of each photon, c denotes the light speed, h denotes the Planck’s…

Q: The threshold of dark-adapted (scotopic) vision is 4.5 ✕ 10−11 W/m2 at a central wavelength of 500…

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Q: A laser emits a single, 2.0 ms pulse of light that has a frequency of 2.83 * 10^11 Hz and a total…

A: Frequency of light =2.83 ×1011 Hz Power of light =75000 W  Time of pulse =2 ms = 2 ×10-3 s Number of…

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

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Q: Give the energy (in eV) of a photon with wavelength 668.0 nm.

A: Given data:  A photon Wavelength (λ) = 668.0 nm = 668.0×10-9 m Required: The energy of photon in eV

Q: lightbulb emits about 7.45W of visible light. (The other 109.55W are emitted as infrared radiation…

A: Energy of photon = hv h = planks constant= 6.6 × 10-34 Js v = Frequency of photon

Q: What is the energy (in eV) of a photon with 150 nm wavelength?

A: Given Wavelength of light = λ = 150 nm We have to calculate the energy in eV

Q: A photovoltaic cell converts light into electrical energy. Suppose a certain photovoltaic cell is…

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Q: How many photons per second are emitted by the antenna of a microwave oven if its power output is 1…

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Q: A 519 nm laser emits 2.41 x 1019 photons per second, how much total energy (in J) would this…

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Q: The threshold of dark-adapted (scotopic) vision is 2.8 ✕ 10−11 W/m2 at a central wavelength of 500…

A: The number of photons that enter the eye is, n=EEr Write the expression for the energy of a single…

Q: Gamma rays are photons with very high energy. How many visible-light photons with a wavelength of…

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Q: The threshold of dark-adapted (scotopic) vision is 4.0 × 10−11 W/m2 at a central wavelength of 500…

A: It is given that,