Question

A green leaf has a surface area of 2.40 cm2 . If solar radiation is 1110...

A green leaf has a surface area of 2.40 cm2 . If solar radiation is 1110 W/m2 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

P = I* A
   =1110 W/m^2 * (2.4*10^-4 m^2)
   =0.2664 W

energy of 1 photon = h*c/lambda
E = (6.626*10^-34)*(3*10^8) /(504*10^-9)
   =3.944*10^-19 J

Number of photon = 0.2664 / (3.944*10^-19 )
                                        =6.75*10^17 photon

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A green leaf has a surface area of 2.50 cm2 . If solar radiation is 1050...
A green leaf has a surface area of 2.50 cm2 . If solar radiation is 1050 W/m2 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation.
A green leaf has a surface area of 2.05 cm2. If solar radiation is 1170 W/m2...
A green leaf has a surface area of 2.05 cm2. If solar radiation is 1170 W/m2 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation. Express your answer using three significant figures. N = photons per second
A green leaf has a surface area of 2.50 cm2. If solar radiation is 1000 W/m2,...
A green leaf has a surface area of 2.50 cm2. If solar radiation is 1000 W/m2, how many photons strike the leaf every second? Assume 3 sig figs and average wavelength being 504 nm for solar radiation.
A green leaf has a surface area of 2.05cm2 . If solar radiation is 1090W/m2 ,...
A green leaf has a surface area of 2.05cm2 . If solar radiation is 1090W/m2 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation. Need the answer in photons per second
1. An ultraviolet light with wavelength 380 nm and intensity 1.00 W/m2 falling on 1.00 cm2...
1. An ultraviolet light with wavelength 380 nm and intensity 1.00 W/m2 falling on 1.00 cm2 area of Lithium surface. If 0.9 % of the incident photons produces photoelectrons, how many photons emitted per second. 2.Calculate maximum kinetic energy of ejected photoelectron when 320 nm light falls on Silver surface.
The intensity of the electromagnetic radiation from the sun reaching the Earth’s upper atmosphere is 1.37...
The intensity of the electromagnetic radiation from the sun reaching the Earth’s upper atmosphere is 1.37 kW/m2 . Assume that the average wavelength for this radiation is 680 nm. a. Find the number of photons per second that strike a 1 m by 3 m solar panel directly facing the sun on an orbiting satellite. b. What is the number of photon per second if the panel is tilted 25degrees away from the sun?
At the surface of the Earth, the intensity of direct sunlight is roughly 1.4 kW per...
At the surface of the Earth, the intensity of direct sunlight is roughly 1.4 kW per square meter. Consider a solar array on the top of someone’s house having ten solar panels each with area 0.5 m2 . Let’s assume for simplicity that all sunlight at the Earth’s surface has wavelength 500 nm; how many photons hit the whole solar array over one hour of direct sunlight?
The solar energy reaching the earths surface amounts to 7.0 J/(cm^2 x s). If 0.25% of...
The solar energy reaching the earths surface amounts to 7.0 J/(cm^2 x s). If 0.25% of this light (wavelength = 600 nm) is used by a green leaf (20 cm^2), can 100 such leaves produce enough hexose per person, per day? Average human needs about 40 g sugar/day. Assume 12 hours of sunlight/day.
At a certain location, the solar power per unit area reaching Earth's surface is 200 W/m2,...
At a certain location, the solar power per unit area reaching Earth's surface is 200 W/m2, averaged over a 24-hour day. Part A If the average power requirement in your home is 2.4 kW and you can convert solar power to electric power with 13 % efficiency, how large a collector area will you need to meet all your household energy requirements from solar energy?
Spinach contains iron. Assume that one leaf has an area of 15 cm2 and has 7.3...
Spinach contains iron. Assume that one leaf has an area of 15 cm2 and has 7.3 x 105 atoms of iron per nm2 in it. Anne makes a spinach dish that has a volume of 5 L and uses 110 leaves of spinach. She needs to eat 3.2 x 10-4 moles of iron per day. How many pL of the dish would she have to eat in one day? (1 mole = 6.022 x 1023 atoms).
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT