C a sliding Door ig idk tell me the right answer
I think 23 is b and 24 a?
Colors seen on the cover of our physics book result from color is due to Subtraction.
What is physics of color subtraction?
- Some visible spectrum wavelengths are intentionally removed during the subtraction procedure.
- For instance, the yellow filter transmits the green and red colors while blocking the blue.
- Red and blue are transmitted while the green is blocked by the magenta filter.
- Blue and green are transmitted while red is blocked by the cyan filter.
- Subtractive mixing gets its name from the fact that when colors are mixed, wavelengths are removed from what we see because each paint absorbs some of the wavelengths that the other paint reflects, leaving us with less wavelengths afterward.
Learn more about Subtractive mixing with the help of the given link:
brainly.com/question/1871483
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<u>Answer:</u> The focal length of makeup mirror is 0.3448 m.
<u>Explanation:</u>
We are given:
m = 1.5
u = -11.5 cm
To calculate the image distance, we the equation for mirror:
Putting values in above equation, we get:
To calculate the focal length of mirror, we use the mirror formula, which is:
Putting values in above equation, we get:
Negative sign represents the position of focal length.
Converting the focal length into meters, we use the conversion factor:
1 m = 100 cm
So, 34.48 cm = 0.3448 m
Hence, the focal length of makeup mirror is 0.3448 m.