Calculate illuminance on the spherical surface

Assignment Help Physics
Reference no: EM131073561

a small light source having uniform luminous intensity of 20 candela is situated at the centre of a spherical surface of radius 2 m .calculate

1. the luminous flux

2. illuminance on the spherical surface.

Reference no: EM131073561

Questions Cloud

Identify the career goals for which you are preparing : Identify the career goals for which you are preparing. Describe the most likely ways in which technological developments will affect those career goals, in both the short- and long-term future.
Describe the purchasing methods that they use : Select an organisation that you are familiar with, this could be the organisation that you work for currently, you worked for previously or a sporting or social club that you are involved with. Describe the purchasing methods that they use and exp..
How does the mechanism work : 1. What is a proxy firewall and how is it different from a network (or transparent) firewall? 2. What does NAT stand for, and how does the mechanism work? Describe what, if any, security NAT provides (or fails to provide). 3. Where would you place ..
Write a formal fire investigation report : For this project you will write a formal Fire Investigation Report (FIR) in a professional manner. You will identify the West (TX) Fertilizer Plant as your fire scene, using specific data already known through any of the many published public repo..
Calculate illuminance on the spherical surface : illuminance on the spherical surface.
Data communication delivering information anywhere : Present an overview of the origin and history of the concept. Describe the current use of and attitude toward the concept. Explain the strengths and weaknesses (or the advantages and disadvantages) of the concept.
The expectations and requirements of the capstone project : For this assessment, submit the following for your capstone project. Refer to the Course Summary and the Assessment 1 Context to review the expectations and requirements of the capstone project.
Write a reaserch on financial analysis of apple inc : Write a reaserch on Financial Analysis of Apple Inc.. Pages as you see fit. Cover page included. Double spaced.
Threats and vulnerabilities for virtualization : 1. Identify threats and vulnerabilities for virtualization for a fictitious major organization,

Reviews

Write a Review

Physics Questions & Answers

  Find the density of the wood and density of the oil

A block of wood with volume V floats in waterwith 0.67V submerged.In oil the block floats with 0.85V of its volume submerged. Find the density of the wood. Find the density of the oil.

  How many cubic meters are there in firkins

A firkin is an old British unit of volume equal to 9 gallons. How many cubic meters are there in 6.06 firkins

  Constant speed the same distance vertically

A 1,200-N crate rests on the floor. How much work is needed to move it at constant speed 4.8 m along the floor against a friction force of 240 N? How much work is needed to move it at constant speed the same distance vertically?

  A spacecraft is in orbit around a planet the radius of the

a spacecraft is in orbit around a planet. the radius of the orbit is 3.1 times the radius of the planet which is r

  Electron is trapped in a one-dimensional infinite potential

An electron is trapped in a one-dimensional infinite potential well that is 310 pm wide; the electron is in its ground state. What is the probability that you can detect the electron in an interval of width δx = 5.0 pm centered at x = 34 pm?

  What is the least time in which an elevator can travel

You are an engineer in charge of designing a new generation of elevators for a prospective upgrade to the empire state building. Before the state legislature votes on funding for the project.

  Satellite have to an observer standing on the rotating earth

Assume that NASA fails in its attempt to put a communications satellite into geosynchronous orbit. If the orbit is too big, what apparent motion will the satellite have to an observer standing on the rotating Earth?

  Find the magnitude of the frictional force

A hollow spherical shell with mass 1.75kg rolls without slipping down a slope that makes an angle of 35.0 degree with the horizontal. Find the magnitude of the frictional force acting on the spherical shell

  How far is point horizontally from the end of the ramp

A skateboarder shoots off a ramp with a velocity of 6.4 m/s, directed at an angle of 55° above horizontal.

  Find the speed of the ball just before it lands

A golfer hits a shot to a green that is elevated 3 m above the point where the ball is struck. find the speed of the ball just before it lands

  Determine the magnitude of electric field at given point

A charge of 80nC is uniformly distributed along the x axis from x = 0 to x = 2.0 m. Determine the magnitude of the electric field at a point on the x axis with x= 8.0m

  Determine at what angles do the third bright spots occur

when laser light of wavelenght 633.8nm passes through a diffraction grating, the first bright spot occurs at +- 18.6 degrees from the central maximum. At what angles do the third bright spots occur

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