Explain how much light energy passes through in one minute

Reference no: EM13118892

Hight of intensity 2.5 W/m2 passes through the pupil of one of your eyes and eventually falls on your retina. The radius of the pupil is controlled by the iris. In a human eye, the radius of the pupil can vary from about 1.0 mm to about 3.5 mm. The area of the opening can be calculated from pi (3.1416) times the radius squared. If your pupil is open to a radius of 3.5 mm, how much light energy passes through in one minute? Give your answer in mJ.

Reference no: EM13118892

Questions Cloud

Which of the following pairs is most closely related : Which of the following pairs is most closely related?

Teach the vocabulary of kitchen items : Imagine you are going to teach the vocabulary of kitchen items to a pre-intermediate class of young adults. The classroom has minimal furniture, rows of desks fixed to the floor and a blackboard. All students have pens and paper.

Illustrate what is number density of atoms in this chamber : Vi = 10-3 m3 chamber of a gas bottle contains some argon gas (atomic weight = 0.040 kg/mole) at a pressure of 104 Pa and a temperature of 22° C. Illustrate what is the number density of atoms in this chamber?

Describe the function of each of the following major : Describe the function (role) of each of the following major vegetative tissues in plants: epidermis, cortex, xylem, phloem, pith, mesophyll.

Explain how much light energy passes through in one minute : The area of the opening can be calculated from pi (3.1416) times the radius squared. If your pupil is open to a radius of 3.5 mm, explain how much light energy passes through in one minute? Give your answer in mJ.

Information regarding interval : Find the interval about the sample mean such that the probability is 0.90 that the true mean lies within the interval (when P=90%,t=1.65)

Compute probability problem quantitative methods : 55% of a restaurant's orders are from customers eating in the restaurant and 45% from the drive through window. 65% of the orders from the customers eating in the restaurant are from food and 35% from drinks. Solve Probability Problem Quantitative ..

Explain how close does the proton get to the line of charge : An infinitely long line of charge has a linear charge density of 5.00×10−12 C/m. A proton is at distance 19.0 cm from the line and is moving directly toward the line with speed 2000 m/s. Explain how close does the proton get to the line of charge?

Illustrate the factors involved in the milankovitch cycles : Briefly describe and use diagrams to illustrate the factors involved in the Milankovitch cycles and why current warming trends seem different from natural cycles. Also, comment on how this may affect organisms in Savannah and Tundra biomes.

User Account

All Pages