A 1000 W gas discharge lamp emits 5.00 W of UV radiation in a narrow range centered on 285 nm. How many photons of this wavelength are emitted in a 5.00 sec time period? How many moles of photons is this

Q: Under ideal conditions, a visual sensation can occur in the human visual system if light of…

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Q: A light beam of wavelength 596 hm and intensity 251 W/m^2 shines on a target of area 2.47 m^2 for a…

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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: By Amax Oi the pi LL alls on the same surface?

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Q: Sunlight reaching the Earth’s atmosphere has an intensity ofabout 1300 W/m2 Estimate how many…

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Q: A light beam of wavelength 431 nm and intensity 159 W/m^2 shines on a target of area 2.86 m^2 for a…

A: Given data:  Wavelength (λ) = 431 nm Intensity (I) = 159 W/m2 Area (A) = 2.86 m2 Time (t) = 2.12 s…

Q: Station KAIM in Hawaii broadcasts on the AM dial at 870 kHz, with a maximum power of 50,000 W. At…

A: From the expression of work function, E=hcλE=hf                   ∵f=cλ

Q: A Blu-ray disc player uses a λ = 405mm, P = 5.00mW laser and can read 18.5ns. The energy emitted by…

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Q: photons are emitted e

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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: 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: Two sources of light emit X-rays of wavelength 1 nm and visible light of wavelength 500 nm,…

A: Given data- λ1=1 nmλ2=500 nmP=200 W

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: In a Compton scattering experiment, the incident X-rays have a wavelength of 0.2690 nm, and the…

A: To determine the scattering angle θ in a Compton scattering experiment, we use the Compton…

Q: A light beam of wavelength 476 nm and intensity 119 W/m^2 shines on a target of area 2.11 m^2 for a…

A: Given value--- wavelength = 476 nm. intensity = 119 W/m2.  Area = 2.11 m2.  time = 2.75 s. We have…

Q: An AM radio transmitter radiates 500 kW at a frequency of 760 kHz. How many photons per second does…

A: Here,Power (P) = 500 kWFrequency (ν) = 760 kHz

Q: The human eye’s optic nerve needs 2 x 10-17 joules of energy to trigger a series of impulses to…

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Q: In a Compton scattering experiment, the incident X-rays have a wavelength of 0.2681 nm, and the…

A: Required: The angle of scattering

Q: One molecule of ATP provides 0.30 eV when it is used to power cellular processes. Photosynthesis in…

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Q: A strange metallic rock is found and is being tested. Suppose that light with a frequency of 9.40 ✕…

A: Given: Frequency ν=9.40×1014 Hz Stopping potential Vs=1.50 V Standard data used: Planck's constant…

Q: How many photons per second are emitted by a monochromatic lightbulb (660  nm) that emits 45  W   of…

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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 photoelectric experiment has a work function = 6.35 eV. The minimum cutoff frequency is 1.53E15…

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Q: Small helium-neon lasers emit 1.48 mJ/s of light at 634 nm. How many photons does such a laser emit…

A: The number of photons emitted per second is equal to the energy emitted by the laser each second…

Q: Photons of wavelength 510 nm are incident on a metal. The most energetic electrons ejected from the…

A: Given Data:- Wavelength of the incident photon is λ=510 nm Magnetic field is B=1.20×10-5 T Radius of…

Q: The average wavelength of light emitted by a green bulb is 650 nm. This lamp is rated at 300W and…

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Q: A photon of wavelength 200 nm is scattered by an electron that is initially at rest. Which one of…

A: The Compton effect is the scattering of a photon by an electron. The scattered photon has a longer…