Answer:
2.17*10^9 Hz
Explanation:
Suppose a manufacturing error occurred and the oven was made 4.0 cm longer than specified in part (a). In this case, the frequency of the microwaves for which there are five antinodal planes of the electric field along the width of the oven is calculated as shown below.
In the given question, we have the following variables:
speed = c = 3*10^10 cm/s
wavelength = λ = 12.2+(4/2.5) = 13.8 cm
Using the equation that relates frequency, wavelength, and speed. We have:
f = c/λ = 3*10^10/13.8 = 2.17*10^9 Hz
Therefore, the frequency of the microwave is 2.17*10^9 Hz.
3 as a single number is considered a sf
Wavelength = 20 m = 0.20 m
frequency = 3*10^8 / 0.20 = 1.5 * 10^9 Hertz
The angle of the Earth on its axis making the sun to beam on the Northern and Southern Hemispheres differently. When one side is fronting the sun, the other is on the side the darkness, so, when it's Winter in the northern half, it's Summer in the southern half.