Question

5. Calculate the wavelength (nm), and energy (J) of a photon with a frequency of 6.8 x 1013 sł. To what portion of the electromagnetic spectrum does this belong? umܝܩܩܩܩܩܩܩܩܩܩܝAQS Anshasa Radiation type 6. Calculate the frequency of radiation (s!) associated with an electron relaxing from the n=6 to n=2 energy level in a hydrogen atom. What color would this be? Ans. - s Color =

Answer 1

data v (frequeniy) : Given 3 x10 ms C (velouty ofizt) Now We' kna w SA 3 x 10my 6 8 o.441x1A 0 441 x O5 m o 1 -5 O 441 x 10 01 4 O 441 10 And hv= (6 6 26x 10 x (6.8x I' 34 where h Plancks Const ant -2 A 5. 0S6 X 10 Jnfrared (IR) Radiation tape 44

6. 4 aIT 2. me Ne know E1 E2 = 2n2 me1 Where = mam o1 an elecdron char ge of qn electron Plancks constant Primarn state xitedstate 2m me1 hn2 4E 2n m e 4 2nme4 hn2 2n2me I;- 2T2me h3 Puttin e roiues T3.14, m = 9.108 xlo G 626 10 e4. X10eso an d rems-2 Cm 2nm e4 L5 3.2906 XIo

3. 2906x 1015 Given hore 2 3. 2906 x 10 9-17 3.29 0 6x 10 3 6 3 29 o 6xio, S- 3 6 0 7312x 1o15s-1 o.731 21 4.102 x o 7 10A 4. 102 16 4 202 x 103 A - 410-2 nm 41 02 A Colau vio Lef 11