Spectral Series: What is the wavelength in the Balmer series for n = 15?
A. 277.1 nm
B. 371.1 nm
C. 188.6 nm
D. 656 nm
E. 754.2 nm
Answer: B
You might also like to view...
Two concentric conducting spherical shells produce a radially outward electric field of magnitude 49,000 N/C at a point 4.10 m from the center of the shells. The outer surface of the larger shell has a radius of 3.75 m
If the inner shell contains an excess charge of -5.30 ?C, find the amount of charge on the outer surface of the larger shell. (k = 1/4??0 = 8.99 × 109 N ? m2/C2)
If an electron is accelerated from rest through a potential difference of 9.9 kV, what is its resulting speed? (e = 1.60 × 10-19 C, k = 1/4??0 = 8.99 × 109 N ? m2/C2, mel = 9.11 x 10-31 kg)
A) 5.9 × 107 m/s B) 4.9 × 107 m/s C) 3.9 × 107 m/s D) 2.9 × 107 m/s
A particle with charge -40.0 nC is on the x axis at the point with coordinate x = 0. A second particle, with charge -20.0 nC, is on the x axis at x = 0.500 m. There is a point between x = 0 and x = 500 mm where the electric field is zero. Is the electric potential zero at this point?
1.No; it is positive. 2.Yes. 3.No; it is negative.
Al is moving by you at a very high speed (close to the speed of light). You get out a clock and measure 10 seconds going by. If you also watch a clock in Al's ship, how much time will you see it record during your 10 seconds?
A) Al's clock will record less than 10 seconds. B) Al's clock will record more than 10 seconds. C) Al's clock will agree that 10 seconds go by.