29:006  Solutions to problems on page 379

Problem 1   c = l x f   = 300,000,000 m/s = l x 900, 000,000 Hz , so  l  = 1/3 meter = 0.333 m

Problem 2    300,000,000 m/s = l x 27,000,000 Hz, so l =11.1 m, a quarter wave antenna should be l/4 in length

Problem 3    6.5 x 10¹⁴ Hz means 6.500,000,000,000,000 Hz. l = c/ f =0.000000462 m

Problem 4    for l = 160 m, f = 300,000,000 /160 = 1,875,000 Hz = 1.875 MHZ

                       for l = 15 m, f = 300,000,000 / 15 = 20,000,000 Hz = 20 MHZ

                       for l = 2 m, f = 300,000,000 / 2 = 150,000,000 Hz = 150 MHZ

Problem 5    f = 300,000,000 / 0.36m =  833,333,333 Hz = 833.33 MHZ