A monochromatic laser is exciting hydrogen atoms from the
state to the
state.
Part A 

What is the wavelength of the laser? 
Express your answer to three significant digits in nanometers.
ANSWER: 
 =  435
 

Part B 

Eventually, all of the excited hydrogen atoms will emit photons until they fall back to the ground state. How many different wavelengths can be observed in this process? 
ANSWER:
Part C 

What is the longest wavelength that is observed? 
Express your answer to three significant digits in nanometers.
ANSWER: 
 =  4059
 

Part D 

What is the shortest wavelength observed? 
Express your answer to three significant digits in nanometers.
ANSWER: 
 =  95.1
 


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