An EM wave has a frequency of 2.61 X 10 15 Hz. What is its wavelength? Select one: 115 nm 870 nm 115 Mm 429 nm

 Q:-  An EM wave has a frequency of 2.61 X 10 15 Hz. What is its wavelength? Select one: 115 nm 870 nm 115 Mm 429 nm

Solution:

given, 

frequency, v  =  2.61 x 10¹⁵  Hz

 

Now,  we know that ,

wavelength , λ  =    =    =  1.14942 x 10^-7  =  115 nm

 

Hence, wavelength of EM wave is 115 nano meter.