What energies can the subsequently emitted photons have

Reference no: EM13672065

An unknown element is found to have an absorption spectrum with lines at 3.0, 7.0, and 9.0eV, and its ionization energy is 10.0eV. (a) If a 9.0eV photon is absorbed, what energies can the subsequently emitted photons have? (b) What wavelength photon would be needed to ionize this element in its ground state and give the ejected electron a kinetic energy 10eV?

Reference no: EM13672065

Questions Cloud

What time interval is needed for the trip if the plane flies : An airplane maintains a speed of 630 km/h relative to the air it is flying during as it makes a trip to a city 750 km away to the north. (a) What time interval is needed for the trip if the plane flies through a headwind blowing at 35.0 degrees km/h ..

Neglect the initial speed of the roller coaster : A roller coaster descends 35 meters in its initial drop and then rises 23 meters before going over the first hill. If a passenger at the top of the hill feels an apparent weight which is one-half of her normal weight, what is the radius of curvature ..

How many bacteria are in the culture on the rocket : As observed on earth, a certain type of bacterium is known to double in number every 18 hours. Two cultures of these bacteria are prepared, each consisting initially of one bacterium. One culture is left on earth and the other placed on a rocket that..

What is the limit velocity of the body : A small body of mass m can move on an inclined plane which forms an angle α = 10 degrees with the horizontal. The dynamic friction coefficient among the body and the surface of the inclined plane is μk = 0.2. The body is attached to a motor with a ma..

What energies can the subsequently emitted photons have : An unknown element is found to have an absorption spectrum with lines at 3.0, 7.0, and 9.0eV, and its ionization energy is 10.0eV. If a 9.0eV photon is absorbed, what energies can the subsequently emitted photons have?

Compute the unknown capacitance : An isolated capacitor of unknown capacitance has been charged to a potential dissimilarity of 200 V. When the charged capacitor is disconnected from the battery and then connected in parallel to an un charged 10.0 µF capacitor, the voltage across the..

Compute the moment of connection with the inductor : A 20.0 uF capacitor is charged with a 150.0 V power supply, then disconnected from the power and connected in series with 0.280 m Inductor.

Take the capacitor to lose half of its charge-stored energy : A 12.0 uF capacitor is charged to a potential of 50-V and then discharged during a 175 ohm resistor. How long does it take the capacitor to lose (a) half of its charge and (b) half of its stored energy?

Express the kinetic energy of the proton in ev : The plates of a parallel plate capacitor are separated by 5mm. The electric field among them is 4.2 x 10^5 V/m. A proton is released with an initial velocity of zero at the positive plate. Suppose there is a vacuum between the plates.

User Account

All Pages