Aburst of green light (wavelength 550 nm) has a total energy of 5.50 ×10–17 j. how many photons does it contain? report your answer with three significant figures. do not include units in your answer. use the format 2.22e2 or 2.22e-2 for scientific notation.

152 photons

Step-by-step explanation:

Data provided in the question:

wavelength of the green light, λ = 550 nm = 550 × 10⁻⁹ m

Total energy = 5.50 × 10⁻¹⁷ J

Now,

Energy =

here,

n = number of photons

h = Plank's constant = 6.63 × 10⁻³⁴ J.s

c = speed of light = 3 × 10⁸ m/s

Therefore,

5.50 × 10⁻¹⁷ J =  

or

( 5.50 × 10⁻¹⁷)( 550 × 10⁻⁹) = n(6.63 × 10⁻³⁴)(3 × 10⁸)

or

3025 × 10⁻²⁶ = n(19.89 × 10⁻²⁶ )

or

n = 152.086 ≈ 152 photons

110698.56 square miles

step-by-step explanation:

multiply 3.8 by 102

387.6

multiply 2.8 by 102

285.6

multiply those two to get

answer: idk

step-by-step explanation: