Answered: The table from the problem #4 is… | bartleby

Related questions

Question

**Problem #4**

The luminous flux on a table is 400 Lumens. The dimensions of the table are 100 cm by 200 cm.

**Problem #5**

The table from Problem #4 is illuminated by a lamp placed on the ceiling. The lamp irradiates light in all directions. The distance from the ceiling to the table is 5 meters.

1) What is the luminous flux (lumens) the lamp needs to release?

2) What will be the power needed to produce the necessary luminous flux if the lamp is a CFL lamp with an efficacy of 60 lumens/watt?

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

Which of the steps is not needed to determine whether the Bragg condition is fulfilled? All of these steps are necessary O Calculate their respective interplanar distances O Calculate the angle 0 for all the set of lattice planes Index all the set of lattice planes that can fulfill the condition O Determine whether the Bragg condition is fulfilled knowing the wavelength of X-rays
The figure below depicts spectral reflectance measurements for three different materials: a green leaf from a healthy plant, a sheet of shiny blue paper, and the palm of a human hand. The measurements are labeled 1 (black line), 2 (red line), and 3 (blue line). Match the measurements to the most appropriate material type
Cover each end of a cardboard tube with metal foil. Then use a pencil to punch a hole in each end, one about 3 millimeters in diameter and the other twice as big. Place your eye to the small hole and look through the tube at the colors of things against the black background of the tube. You'll see colors that look very different from how they appear against ordinary backgrounds. Write down observation
1.2) In a region of gas where the optical depth is 2.0, what percentage of photons can escape without being scattered or absorbed?
I need the answer as soon as possible
The amount of light detected by a particular PM tube is ......... distance between the interaction site and the center of that PM tube. related to the lateral : a) Inversely b) exponential c) proportional d) non