7) How long doés it take light from the sun, 93 million miles away, to reach Ear

Question

7) How long doés it take light from the sun, 93 million miles away, to reach Earth? (1 pt) 8) In astronomy, distances are measured in light years, the distance that light travels in one year What is the distance of one light year (assume not exact) expressed in kilometers? (1 pt) 9) Use the Balmer equation (8.2) to determine: (1 pt each -3 pts total) (a) The frequeney, in s 1, of the radiation corresponding to n 5: (b) The wavelength, in nm, of the line in the Balmer series corresponding to n-7: (c) The value of n corresponding to the Balmer series line at 380 nm:

Explanation / Answer

Solution-We know that the

Time = distance/Speed

=93000000/186000

=500 seconds.

Answer

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