ultrasonic sound:sound::light?crossword puzzle 11 letters across

electric bulb? (11 letters without the space = electricbulb)

Sra

thanks for the help

To find the answer to the crossword puzzle clue "ultrasonic sound:sound::light?" with 11 letters across, you can follow these steps:

Step 1: Understand the clue
The clue is comparing "ultrasonic sound" to "light" and is asking for a word that has a similar relationship to "sound" as "ultrasonic" has to "sound." In other words, it's looking for a word that describes a specific type or characteristic of "light," just as "ultrasonic" describes a specific type of "sound."

Step 2: Identify the relationship between "ultrasonic" and "sound"
"Ultrasonic" is an adjective that specifies a higher frequency of sound than what the human ear can typically hear. Therefore, it relates to "sound" as a characteristic or type of sound.

Step 3: Find a word that fits the same relationship with "light"
To find the word that fits the same pattern, you need to identify a term or characteristic related to "light." One such term is "infrared," which is an adjective used to describe light with longer wavelengths than those of visible light.

Step 4: Check the length of the word
The crossword clue specifies that the answer has 11 letters, so we need to make sure "infrared" fits the length requirement.

Step 5: Confirm the answer
By going through these steps, we conclude that the answer to the crossword puzzle clue "ultrasonic sound:sound::light?" with 11 letters across is "infrared."