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satela [25.4K]
3 years ago
14

The alpha line in the balmer series of the hydrogen spectrum consists of light having a wavelength of 6.56. calculate the freque

ncy of this light
Physics
1 answer:
guajiro [1.7K]3 years ago
5 0
The alpha line in the Balmer series is the transition from n=3 to n=2 and with the wavelength of λ=656 nm = 6.56*10^-7 m. To get the frequency we need the formula: v=λ*f where v is the speed of light, λ is the wavelength and f is the frequency, or c=λ*f. c=3*10^8 m/s. To get the frequency: f=c/λ. Now we input the numbers: f=(3*10^8)/(6.56*10^-7)=4.57*10^14 Hz. So the frequency of the light from alpha line is f= 4.57*10^14 Hz. 
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Fan object moves in uniform circular motion in a circle of radius R=200 meters, and the objectes 5.00 seconds to
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The centripetal acceleration of the object is 31550.72\ m/s^2.  

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a ball is thrown striaght up in the air and then falls back to earth. if the downward fall takes 2.2s, how fast is the ball trav
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The velocity of the ball when it strikes the ground, given the data is 21.56 m/s

<h3>Data obtained from the question</h3>

From the question given above, the following data were obtained:

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The velocity of the ball when it strikes the ground can be obtained as illustrated below:

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brainly.com/question/22719691

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1 year ago
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