A candle radiates light equally in all directions at an average rate of 80 W. At a certain distance from the candle, a derector measures a maximun electric field magnitude of 27.7 N/C. A) Calculate the average intensity of the candlelight at the ditector. B) Calculate the distance between the detector and the candle.

Q: A 15.0-mW helium–neon laser emits a beam of circular cross section with a diameter of 2.00 mm. (a)…

A:

Q: A light bulb emits light uniformly in all directions. The average emitted power is 75W. At a…

A: Given that, Average power, P=75W Distance, r= 2m Intensity, I=P4πr2=75 Watt4π×22=1.492 W/m2The…

Q: Submit Previous Answers Estimate the radiation pressure due to a bulb that emits 25 W of EM…

A: We are given the power of bulb. We are also given the distance. The radiation pressure for perfect…

Q: A 0.240-A current is charging a capacitor that has circular plates 11.6 cm in radius. The plate…

A:

Q: During normal beating, the heart creates a maximum 4.20-mV potential across 0.260 m of a person's…

A: Solution Given, Maximum potential (V) = 4.20 mV = 4.20 x 10-3 V            Length (d) = 0.260 m…

Q: A space probe is a distance of 400 million meters from a planet (about the distance from the = 620…

A:

Q: Studies show that long term exposure to radio waves with intensities less than 0.050 W/m2 has no…

A:

Q: 0.210-A current is charging a capacitor that has circular plates 14.2 cm in radius. The plate…

A: Given data as per question  I  =  0.210A R  =  14.2cm D  =  4mm

Q: Instruction: Input numerical values only; no unit. Keep two decimal points for your numerical…

A:

Q: Biologists often study the patterns of migratory birds by using radar (1–10 GHz electromagnetic…

A: The intensity of the EM-wave be defined as, I=E022μ0cE02=2μ0cIE0=2μ0cI

Q: A candle radiates light equally in all directions at an average rate of 70 W. At a certain distance…

A: 1. Relate Intensity and Power:The intensity (I) of light is the power (P) radiated per unit area…

Q: Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of…

A: Given:-   the helium-neon lasers commonly used in student physics laboratories have power outputs of…

Q: An electromagnetic wave is propagating in the z-direction. What's its polarization direction if its…

A:

Q: A source of electromagnetic waves radiates power uniformly in all directions at a single frequency.…

A:

Q: Electromagnetic radiation from a 4.00-mW laser is concentrated on a 1.0 - mm2 area. • Suppose a…

A:

Q: A pulsed laser used for evaporation ("ablation") in materials science has a total energy of 0.50 J…

A:

Q: The microwave radiation left over from the Big Bang explosion of the universe has an average energy…

A: Given Data:Average energy density of microwave radiation is The average energy density of radation…

Q: Part A Estimate the radiation pressure due to a 100-W bulb at a distance of 5.5 cm from the center…

A: power out put of the bulb, p' = 100 W distance  from the bulb , r = 5.5×10-2m

Q: The thermal emission of the human body has maximum intensity at a wavelength of approximately 9.5…

A:

Q: The radar system at an airport broadcasts 22 GHz microwaves with 300 kW of power. An approaching…

A: Given; Power of the radar system =300 KW Crossection of an airplane, A=62 m2 Distance, r=66 km…

Q: A LASIK vision correction system uses a laser that emits 10-ns -long pulses of light, each with 2.5…

A: laser  emits 10-ns-long pulses of light,  energy=2.5mJ, the laser is focused to a…

Q: A laser beam provides a power density of 2 * 1020 W/m2, determine the amplitude of the electric…

A:

Q: The microwave radiation left over from the Big Bang explosion of the universe has an average energy…

A:

Q: In a plane electromagnetic wave has a magnetic feild amplitude of 33μT.what is the corresponding…

A:

Q: A laser emits a cylindrical beam of light 2.2 mm in dameter Part A the average power of the laser is…

A: The average power of an electromagnetic radiation is given by P=ε0cErms2Ac= speed of lightErms=root…

Q: The amplitude of the B field of an EM wave is 2.7×10−7T. The wave travels in free space. A. What…

A:

Q: a а mаximul ах What is the peak magnitude of the electric f V/m- Submit Answer Tries 0/2 What is the…

A:

Q: A LASIK vision correction system uses a laser that emits 10-nsns-long pulses of light, each with 2.5…

A: To find the average power of each laser pulse, we use the formula:Average Power=EnergyTimeGiven:-…

Q: What is the electric field amplitude of an electromagnetic wave whose magnetic field amplitude is…

A: B=Magnetic field amplitude=2 mTc=Speed of light=3×108 m/s

Q: If the intensity of sunlight at the Earth's surface under a fairly clear sky is 1 200 W/m2, how much…

A: Intensity of sunlight, I = 1200 W/m2 The formula of electromagnetic energy in relation with…

Q: You and your friend Hodges are conducting an experiment with light. Hodges points a light source at…

A:

Q: The intensity of the radiation that you receive in your tanning bed is 9.87 W/m2. What is the…

A:

Q: A 0.140-A current is charging a capacitor that has square plates 5.20 cm on each side. The plate…

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: Estimate the radiation pressure due to a bulb that emits 30 W of EM radiation at a distance of 5.0…

A:

Q: A plane electromagnetic wave propagates in a vacuum in the -y-direction. The wave has a wavelength…

A: Wavelength=12 m amplitude of electric field = 0.60V/m angular frequency =2.1×10-9s-1