Find the visible light intensity at the surface of the bulb

Reference no: EM13262817

We can reasonably model a 90-W incandescent lightbulb as a sphere 5.5cm in diameter. Typically, only about 5% of the energy goes to visible light; the rest goes largely to nonvisible infrared radiation.

A) What is the visible light intensity at the surface of the bulb? answer in W/m^2

B) What is the amplitude of the electric field at this surface, for a sinusoidal wave with this intensity? answer in V/M

C) What is the amplitude of the magnetic field at this surface, for a sinusoidal wave with this intensity? answer in uT

Reference no: EM13262817

Questions Cloud

What type of option is an insurance policy : An insurance policy is considered analogous to an option. From a policyholder's perspective, what type of option is an insurance policy? Why?

Increased opportunities offered by international purchasing : Unfortunately, along with the increased opportunities offered by international purchasing comes additional risk. Firms must learn to minimize these risks and manage them appropriately so that supply disruptions or quality problems do not jeopardize c..

Find what are the numerical strength and locations : Let x[n] be a signal and let y[n]=Σx[m], where m is from -∞ to n. If Y(jΩ) =cos2Ω, x[n] consists of exactly four impulses. What are their numerical strength and locations

What are the maximum possible dollars the us importer : The spot rate on the September payment date turns out to be $1.70/BP. The importer can either exercise the call options or sell them back at their market value. Assume that he can sell them back at $0.0205 per BP if he chooses to. What is the actu..

Find the visible light intensity at the surface of the bulb : We can reasonably model a 90-W incandescent lightbulb as a sphere 5.5cm in diameter. find the visible light intensity at the surface of the bulb

Depict the following containing three carbon atoms : Draw the following containing 3 carbon atoms- aldehyde,alcohol,amine,ether,carboxylic acid and ketone

Find the initial phase of the electric field intensity : If i were to have a plane wave in free space with the following E field intensity: E = 15cos(ωt + 10πz + θ) in the y direction V/m and H at t=0 z=1.15m is 0.02 A/m how can I find the initial phase, θ

How many electrons per second are ejected : A laser with a power output of 2.10 mW at a wavelength of 425 nm is projected onto calcium metal. Given the binding energy is 2.28 eV, how many electrons per second are ejected

What are the convexities of the 2 portfolios : What are the convexities of the 2 portfolios? To what extent does (a) duration and (b) convexity explain the difference between the percentage changes calculated in part c?

User Account

All Pages