A hypothetical electromagnetic wave is show below. The frequency of the wave is x × 1019 Hz. x = ______ (nearest integer)
Official Solution
Correct Option: (1)
The frequency of an electromagnetic wave is related to its wavelength by the equation , where is the speed of light (~ m/s). Given pm, we convert it to meters: pm = m. Now, substitute the values: Hz. This corresponds to . Given range: 5 to 5 (interpreted as 5,5 meaning must be an integer between 5 and 5). However, this seems inconsistent but if taken as a possible typo, since we calculated as , let's verify: does not fit within 5. Hence, verification may be needed on range specification. The nearest integer value of remains .
