1/λ=ry(1/n21 -1/n22)
you set n1 = 1 and taken2 greater than 1, you generate what is knownas the lyman series.
a) find the wavelength of the first member of this series. thevalue of h is 1.05457 e -34 j*s; the rydberg constantfor hydrogen is 1.09735 e7 m-1 ; the bohr radius is5.29177 e-11 m; and the ground stae energy for hydrogen is 13.6057ev.
answer in units of nm.
b) consider the next three members of this series. thewavelengths of successive members of the lyman series approach acommon limit as n2 → [infinity]. what is thislimit?
answer in units of nm.

Space-time metric ds2= -dt2+at2dx2+bt2dy2+ct2dz2 (a)how does the area of a rectangle with vertices at ( x=0, y=0, z=0 ), (1,0,0 ), ( 0,1,0 ) and (1,1,0 ) changes with time? (b) if a photon moving in the x direction starts from the origin at t=1, when does it reach x=l? (ds=0 for the trajectory of a photon.) (c) the proper time for a particle is defined by cd=ds. what is the proper time for a particle to move along the trajectory ( x(t)=t, y(t)=0, z(t)=0 ) from t=0 to 1 ? what is the condition on the parameter a so that the velocity of the particle never exceeds the speed of light ?

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Una carga puntual de 3 x 10-6 c se coloca a 12 cm de una segunda carga puntual de - 1,5 x 10-6 c. calcular la magnitud fuerza eléctrica entre las cargas