Find the illumination

Assignment Help Electrical Engineering
Reference no: EM13218240

A lamp of 100 candela is placed 1 m below a plane mirror which reflects 90% of light falling on it. The lamp is hung 4 m above ground. Find the illumination.

Reference no: EM13218240

Questions Cloud

How the intraprediction in the two coding standards makes : algorithms to show the differences in the intra prediction in the h.264 and hevc coding standards. it should indicate how the intraprediction in the two coding standards makes a difference in their efficiency.
What are the pros and cons of unionizing a workforce : The labor market is traditionally protected by union in many industries such as automobile and K-12 education (public schools) What are the pros and cons of unionizing a workforce What about minimum wage rate What are the pros and cons
Retail market survive with the current level of profits : Why is the retail market for PCs more competitive than a monopoly? In the article, several people in this industry complain about thinner profit margins. Can the retail market survive with the current level of profits?
Design a collision free circuit for a router : A network router connects multiple computers together and allows them to send messages to each other. If two or more computers send messages simultaniously, they collide and the messages must be resent. Design a collision free circuit for a router..
Find the illumination : A lamp of 100 candela is placed 1 m below a plane mirror which reflects 90% of light falling on it. The lamp is hung 4 m above ground. Find the illumination.
How to expose the company''s culture : From the first e-Activity, evaluate whether the decision to expose the company's culture, strategy, and secrets to outsiders was or was not a good idea. Determine how this decision affected the main stakeholders of the company.
Calculate the distance : Calculate the distance, D at which communication from the space craft will be lost again? Assume both antennas are ideal.
Weathering and erosion : Description of difference between weathering and erosion. Graphical representations and descriptions of the following: mechanical weathering
Determine the response of the system : Determine the response of the system when aunit step is applied at input.

Reviews

Write a Review

Electrical Engineering Questions & Answers

  Explain the operation of sequential logic devices

Explain the operation of sequential logic devices and evaluate the output waveform in relation to the clock for QA, QB and QC in the subsequent circuit and show the binary sequence represented by these waveforms

  Solve using gauss-seidel method perform four iterations

Solve Using Gauss-Seidel Method (Perform Four Iterations) Using the Gauss-Seidel method and the initial guess X1(0)=1, solve the following equation (x_1)^2 - 6x_1 + 2 = 0

  Approximation of quarter circle using bezier curve

Approximation of quarter circle using Bezier curve, Determine the Bezier curve of order 3 that approximates a quarter circle centered at (0,0), (1,0), (0,1).

  Measurements show that for a particular arrangement

Measurements show that for a particular arrangement of the equipment and at a particular amplifier setting, the system will howl if 1% of the output power is fed back to the microphone. Estimate the power gain of the P.A. amplifier in decibels.

  What are the names of the three regions of the bipolar

What are the names of the three regions of the bipolar junction transistor? Why is there a thin region of one material type

  Find the sum of the elements of an array called list1

Write a program to find the sum of the elements of an array called list1. The size of list1 is four bytes. The values of list1 are $FF, $1, $FE, and $02. To check your work, the sum should become $0200.

  Define a series circuit has a dc voltage source

A series circuit has a DC voltage source (56 volts), a resistor, (72 ohms), a capacitor (82 farads), and a switch. The capacitor is initially uncharged and the switch closes at t=0.

  Calculate the homogeneous solution

Compute the homogeneous solution yh(t). Compute the particular solution yp(t).

  Define wireless networks

You want to download a 5 Mbit file over a 10-Mbps Rayleigh fading channel in the 1800 MHz frequency band. You are traveling at 6 km/h and use 1000-bit packets.

  Explain what is the byte stored at address

Using the table, what is the byte stored at address 2F? Using the table, what is the byte stored at address 33?

  Determining how to use the function

Determining how to use the function fft to find the DFT coefficients X[k] of x[n] in Matlab. Also, how would you plot the magnitude of X[k] in Matlab?

  Determine what digits each colour band represents

Using many resistors and the DMM, try to determine what digits each colour band represents. Briefly explain your method and your findings in the space below.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd