Question

The equation below models the magnetic field in an electromagnetic wave. Use the model to answer the following questions about the wave. B(t) = (0.50 uT') sin((3.14 . 1095s-)t - (1.047 · 1045 m )x) a) What is the frequency, f, of this wave? b) What is the wavelength of this wave? c) What is the intensity of this wave? Browse My Computer Attach File Browse Content Collection QUESTION 10 Click Save and Submit to save and submit. Click Save All Answers to me all answers, 31

Answer 1

es wave We have the Magnetic field B = (0.54T) sin ( 13-14X10"%s"){ - 11047x106m+)r) Comparing this with the stand and equahon y A sin (wt-kn) 2) We get W= 3:14810**s" ortops But we know, where un frequency 3.140105 = 5x1014 Hz 2 TT 1 € W3 271 V V W 2T by comparing with the standard wave k - 1.047 X1015 mt equation we get But k= an a Thus, wavelength 211 2 27 681015 m k 1047 X10'5 o The amplitude of Mog netic field is gouen es 0.5x1067 Be = 0.5 4T = Thus, intensity of 2 Be2 lo 1.989 x 107 Jmist 2 uo