QUESTION 3 How many photons are contained in a burst of yellow light (589 nm) from...
9. How many photons are contained in a burst of yellow light (589 nm) from a sodium lamp that contains 609 kJ of energy?
How many photons are contained in a flash of green light (525 nm) that contains 47,250 J of energy? 2.01 Х 1024 photons O 1.25 x 1024 photons 4.99 x 1023 photons 7.99 x 1030 photons 5.67 x 1023 photons 1.25 x 1031 photons
A sodium vapor light isotropically emits 15W of light energy at 589 nm. If your pupil has a diameter of 4.5 mm, how many photons will pass into your eye every second from a distance of 12 m? 12 km? The threshold of seeing is about 5 photons/second. How far away can you see this 15W bulb? Note that the flux of a light source is the power absorbed/area.
4. Sodium lamps are commonly used to illuminate highways because of their intense yellow- orange emissions at 589 nm a. Calculate the energy, in joules, of one photon of this light. b. Calculate the energy, in kilojoules, of one mole of such photons 5. What is the de Broglie wavelength (in nm) associated with a 2.5 g Ping-Pong ball traveling at 15.6 m/s? 6. What are the possible values of I and what are the possible subshells for an e...
7. A 342 nm laser pulse contains 2.65 kJ of energy. How many moles of photons are in the laser pulse?
How many kJ of energy are produced from 3 moles of photons with a given wavelength of 677 nm? Enter your answer to 1 decimal place. Helpful information: Planck's constant = 6.626207* 10^(-34) J*s Speed of light = 2.99792*10^8 m/s
How many kJ of energy are produced from 3 moles of photons with a given wavelength of 794 nm? Enter your answer to 1 decimal place. Helpful information: Planck's constant = 6.626207*10^(-34) J*s Speed of light = 2.99792*10^8 m/s
Gamma rays are photons with very high energy. How many visible-light photons with a wavelength of 500 nm would you need to equal the energy of a gamma-ray photon with energy 4.1x10^-13J A) 1.0 × 106 B) 1.4 × 108 C) 6.2 × 109 D) 3.9 × 103
How many kJ of energy are produced from 8 moles of photons with a given wavelength of 450 nm? Enter your answer to 1 decimal place. Helpful information: Planck's constant = 6.626207*10^(-34) J*s Speed of light = 2.99792*10^8 m/s
The yellow light from a sodium vapor lamp has a frequency of 5.08x1014 Hz. How much energy does each photon of that light carry? e= (answer) x 10^-19