The red wavelengths of light are the longer wavelengths and the violet wavelengths of light are the shorter wavelengths. Between red and violet, there is a continuous range or spectrum of wavelengths.
The USPS also includes that a large postcard is 49 cents to mail. The maximum size for this postcard is 11 1/2 inches long, 6 1/8 inches high and 1/4 inch thick. This is the same rate to mail a First Class 1 ounce letter domestically. The rates for postage increased as of January 2014.
They may not exceed 3.5 ounces. Postcards cost $1.20 to mail and cannot exceed one ounce. Sending large flats can cost anywhere from $2.38 to $36.46, while packages range from $6.39 to $38.43.Flats and packages may not exceed 64 ounces, and packages cannot be more than 24 inches long and 36 inches in combined dimensions.hey may not exceed 3.5 ounces. Postcards cost $1.20 to mail and cannot exceed one ounce. Sending large flats can cost anywhere from $2.38 to $36.46, while packages range from $6.39 to $38.43.