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 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: What is the output power, in watts, of a light source that emits light with a wavelength of 596 nm,…
A: This problem can be solved using power formula and energy of photon formula.
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 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?
A:
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: A flashlight emits 1.0W of light energy. Assuming a frequency of 5.2 x 10^14 Hz for the light,…
A:
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: Monochromatic light of frequency 6.0 ×1014 Hz is produced by a laser. The power emitted is 2.0 ×10-3…
A:
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…
A:
Q: One molecule of ATP provides 0.3 eV when used by the cell. Photosynthesis in a typical plant uses 8…
A: Given Energy provided by an ATP molecule is EATP = 0.3 eV The wavelength of a photon is λ = 525 nm…
Q: What is the wavelength in nm of a photon that has a momentum of 4.5*10^-27 kg.m/s
A: Momentum of the photon, Planck's constant, The momentum of the photon is given by the expression…
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: An x-ray source generates EM radiation with a wavelength of 45.0 pm (10-12 m). h = c =…
A: Photon energy is given by : E =hcλ = 1.98644586×10-2545x10-12 = 4.413x10-15 J Potential difference:…
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 laser emits 6.85 x 1018 photons per second in a thin beam with circular cross section having…
A: Power p= energy/ time. Power developmed by 1 photon. Time t = 1 sec P = E/t. P= hC/wavelength *t. P…
Q: How many x-ray photons per second are created by an X-ray tube that produces a flux of x rays having…
A: Given- Flux of X-rays having power, P = 1 W Average energy per photon, E = 75 keV Time, t = 1 sec
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: The sky exhibits the color blue due to the scattering of sunlight by air molecules. The blue light…
A:
Q: A laser emits 2.13 x 1016 photons per second, each of which has wavelength 625 nm. Find (a) the…
A: Given data λ=625 nm
Q: The energy of a photon is 52.6 eV. What is the wavelength in of the photon? Assume 3 sig figs. 1nm =…
A: Energy of the photon, E=52.6eV=52.6×1.6×10-19J speed of photon i.e. light is c=3×108m/s plank…
Q: A photovoltaic cell converts light into electrical energy. Suppose a certain photovoltaic cell is…
A:
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,
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- How many photons per second are emitted by the antenna of a microwave oven if its power output is 1 kW at a frequency of 2560 MHz? photons/sPlatinum has a prominent x-ray emission line at 66.8 keV. (a) What is the minimum speed (in m/s) of an incident electron that could produce this emission line? m/s (b) What is the wavelength (in m) of a 66.8 keV x-ray photon? mA typical red laser pointer has a power output of 1.50 mW and a wavelength of 680 nm. Find how many photons per second the laser emits in units of 10¹5 photons/sec. (A) 2.31 (B) 5.13 (C) 4.97 (D) 7.49 (E) 3.78
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- One of the first signs of sunburn is the reddening of the skin (called erythema). As a very rough rule of thumb, erythema occurs if 14.0 mJ of ultraviolet light of approximately 308 nm wavelength (referred to as UVB radiation) is incident on the skin per square centimeter during a single exposure. How many photons are incident on 1.00 cm2 of skin in this amount of exposure? photonsHow many photons per second are emitted by the antenna of a microwave oven, if its power output is 1.25 kW at a frequency of 2510 MHz? _______ photons/sA laser produces 22.0 mW of light. In 4.00 hr, the laser emits 7.08×10^20 photons.What is the wavelength of the laser.