The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mW. (a) If such a laser beam is projected onto a circular spot 2.48 mm in diameter, what is its intensity? 12.945 What is the relationship between power and intensity? Are you given a radius or a diameter? W/m? (b) Find the peak electric field strength. 92.75 What is the relationship between intensity and electric field strength? V/m (c) Find the peak magnetic field strength. 3.3e-8
Q: Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of…
A:
Q: A microwave source produces pulses of 16.0-GHZ radiation, with each pulse lasting 1.00 ns. A…
A: Given, The average power, P=30kWP=30×103W The radius, r=4.5×10-2m Frequency of source, f=16×109Hz…
Q: An AM radio transmitter broadcasts 46.0 kW of power uniformly in all directions. Assuming all of the…
A:
Q: A dish antenna having a diameter of 16.0 m receives (at normal incidence) a radio signal from a…
A:
Q: A 18.0-mW helium–neon laser emits a beam of circular cross section with a diameter of 1.75 mm. (a)…
A:
Q: Consider a 35 mW He-Ne laser beam with wavelength λ0 = 632.8 nm. The laser beam diameter is 1.0 mm.…
A: (given) Power (P) of He - Ne laser beam = 35 mW…
Q: 5.0-mW laser beam has a circular cross section with a diameter of 0.50 mm. What is the maximum…
A:
Q: Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 1.00…
A:
Q: Lasers can be constructed that produce an extremely high intensity electromagnetic wave for a brief…
A: Given Data:The electric field strength is, E0=1.11×1011 V/mThe time required for the propagation is,…
Q: The helium-neon lasers most commonly used in student physics laboratories have average power outputs…
A: Average power = 0.25 mW = 0.00025 W Diameter = 1.3 mm = 0.0013 m Radius = 0.00065 m
Q: A small spaceship cruises the solar system using an ideal, square-absorbing solar sail with side…
A: Given:The side length of solar sail L =1000mThe intensity of radiation near the earth I = 1300…
Q: A high-energy pulsed laser emits a 1.1-ns-long pulse of average power 1.5×1011 W. The beam is nearly…
A: Time Power Radius Energy rms value of electric field
Q: Lasers can be constructed that produce an extremely high intensity electromagnetic wave for a brief…
A: Answer:- Given Maximum electric field strength (Eo) = 1.48 × 1011 v/m Time (t) = 1…
Q: A uniform plane wave of 200MHz incident on a thick copper plate delivers an amplitude of 1.0mV/m on…
A:
Q: The antenna for an AM radio station is a 73.5-m-high tower whose height is equal to one‑quarter the…
A:
Q: A 16.0-mW helium–neon laser emits a beam of circular cross section with a diameter of 2.95 mm. Find…
A:
Q: Your 5G phone is sending an RF signal at a wavelength of 5.72 mm. What frequency is the wave (in…
A: Wavelength of signal= 5.72mm
Q: During normal beating, the heart creates a maximum 4.20 mV potential across 0.320 m of a person's…
A: Given Information:- Maximum potential created by the heart is V=4.20mV=4.20mV×10-3 V1 mV=4.20×10-3 V…
Q: Satellite TV is broadcast from satellites that orbit the earth. Their antennas broadcast a 15 kW…
A: So to solve this question we first need to find the intensity (I) , which can be derived by…
Q: High-power lasers in factories are used to cut through cloth and metal (see figure below). One such…
A: See below
Q: A 2.75 m diameter university communications satellite dish receives TV signals that have a maximum…
A:
Q: A typical laser used in introductory physics laborat beam of light about 1.90 mm in diameter. The…
A: Given: Diameter=1.90mm Average Power=0.930mW To find: Peak intensity
Q: Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of…
A:
Q: You and your friend Bruce are experimenting with a red lamp shade and blue lamp shade. You place…
A:
Q: A 3.00 m diameter university communications satellite dish receives TV signals that have a maximum…
A:
Q: Infared light has a lower frequency than visible light. What is the frequency of IR light that has…
A: Given:Wavelength of IR light, λ = 680 nmVelocity of light, c = 3 X 108 m/s
Q: At some instant and location, the electric field associated with an electromagnetic wave in vacuum…
A:
Q: Lasers can be constructed that produce an extremely high intensity electromagnetic wave for a brief…
A: Given Data : The maximum electric field of the elctromagnetic wave is given as E=1.25×1011 Vm The…
Step by step
Solved in 3 steps
- A 14.0-mW helium-neon laser emits a beam of circular cross section with a diameter of 2.85 mm. (a) Find the maximum electric field in the beam. kN/C (b) What total energy is contained in a 1.00-m length of the beam? pJ (c) Find the momentum carried by a 1.00-m length of the beam. kg. m/sYou and your friend Bruce are experimenting with a red lamp shade and blue lamp shade. You place lamp shades individually over a 120-W light bulb. Assume that the light radiates from the lamps uniformly and 9.5% of their power is converted to light. (a) What is the average intensity of the light at 1.6 m from the red (1 = 710 nm) lamp shade? W/m2 (b) Is the average intensity of the blue (1 = 480 nm) lamp shade at 1.8 m greater than, less than, or equal to the intensity calculated in part (a)? greater than less than O equal toRadio waves and microwaves are used in therapy to provide “deep heating” of tissue because the waves penetrate beneath the surface of the body and deposit energy. We define the penetration depth as the depth at which the wave intensity has decreased to 37% of its value at the surface. The penetration depth is 15 cm for 27 MHz radio waves. For radio frequencies such as this, the penetration depth is proportional to √λ, the square root of the wavelength. What is the wavelength of 27 MHz radio waves?A. 11 m B. 9.0 m C. 0.011 m D. 0.009 m
- consider a bright star in our sky. assume its distance from earth is 38.3 light-year (ly) and its power output is 4.00 * 10^28 W. about 100 times that of the sun. one light-year is the distance traveled by light through a vacuum in one year. a. find the intensity of the starlight at the earth. b. find the power of the starlight at the earth intercepts ( the radius of earth is 6.38 * 10^6 m .)The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mW. (a) If such a laser beam is projected onto a circular spot 1.30 mm in diameter, what is its intensity? 1.88e2 W/m2 (b) Find the peak electric field strength. 1.255e-6 What is the relationship between intensity and electric field strength? V/m (c) Find the peak magnetic field strength. 3.765e-6 What is the relationship between electric field strength and magnetic field strength in an electromagnetic wave? TA parabolic satellite dish is somewhat bowl-shaped, but the incoming signal is captured across its circular cross-section. A parabolic satellite dish with radius, R = 1.5 m, picks up a TV signal with a peak electric field strength of 74 mV/m. (a) What is the average intensity of the incoming signal? W/m² (b) What is the average (total) power received by the satellite dish? W R (c) What is the average output power of the orbiting transmitter if it broadcasts uniformly over an area of 1.5 x 10¹3 m²? MW
- A 4.25 m diameter university communications satellite dish receives TV signals that have a maximum electric field strength (for one channel) of 7.5 μV/m . (a) What is the intensity of this wave in W/m2? (b) What is the power received by the antenna in W? (c) If the orbiting satellite broadcasts uniformly over an area of 1.50 × 1013 m2 (a large fraction of North America), how much power does it radiate in W?An AM radio transmitter broadcasts 45 kW of power uniformly in all directions.Randomized VariablesP = 45 kWd = 29 km Part (a) Assuming all of the radio waves that strike the ground are completely absorbed, and that there is no absorption by the atmosphere or other objects, what is the intensity 29 km away? Part (b) What is the maximum electric field strength at this distance, in N/C?An electromagnetic wave is normally incident on a flat surface. Assuming the power per unit area transmitted is S = 56.5 W/m2, and the surface is a perfect absorber, what is the radiation pressure (in nPa) on the surface? nPa Need Help? Read It the the line that through the tu
- An electromagnetic wave is normally incident on a flat surface. Assuming the power per unit area transmitted is S = 61.4 W/m², and the surface is a perfect absorber, what is the radiation pressure (in nPa) on the surface? nPa Need Help? Read ItAssume the helium-neon lasers commonly used in student physics laboratories have power outputs of 0.49 mW. (a) If such a laser beam is projected onto a circular spot 1.3 mm in diameter, what is its intensity? I= W m (b) Find the peak magnetic field strength. Bo= T (c) Find the peak electric field strength. E₁= V mAn AM radio transmitter broadcasts 54.0 kW of power uniformly in all directions. (a) Assuming all of the radio waves that strike the ground are completely absorbed, and that there is no absorption by the atmosphere or other objects, what is the intensity (in W/m2) 26.0 km away? (Hint: Half the power will be spread over the area of a hemisphere.) W/m2 (b) What is the maximum electric field strength (in V/m) at this distance? V/m