Test on Color models: RGB, CMYK and HSV

Question 1: In the RGB color model, when all three primary colors of light are combined at their maximum intensity, they produce white light.

A. Yes

B. No

Explanation: The study materials state that in the RGB model, "When all three primary colors of light are combined at their maximum intensity, they produce white light." This confirms that the statement is correct.

Question 2: Light is a form of electromagnetic radiation.

A. Yes

B. No

Explanation: The study materials state that 'Light is a form of electromagnetic radiation'.

Question 3: Which statement accurately describes a principle or characteristic of the CMYK subtractive color model, according to the provided study materials?

A. When all three primary CMY inks are combined at full intensity, they typically produce a vibrant white.

B. The CMYK model is used in devices that emit light, such as computer monitors.

C. More ink applied to a surface results in more light being absorbed, leading to darker colors.

D. CMYK values are typically expressed as hexadecimal codes, similar to RGB.

Explanation: The study materials state that the CMYK model is based on subtractive color mixing, where inks absorb specific wavelengths of light. It explicitly mentions, 'More ink means more light is absorbed, resulting in darker colors.' Option 0 is incorrect because combining CMY typically results in a muddy brown or dark gray, not white. Option 1 is incorrect because the CMYK model is used in printing (reflective surfaces), while RGB is used in devices that emit light. Option 3 is incorrect because CMYK values are typically expressed as percentages, not hexadecimal codes; hexadecimal codes are mentioned for RGB.

Question 4: Given an RGB color with the decimal values R=192, G=96, B=240, which of the following is its correct hexadecimal color code?

A. #C060F0

B. #C060E0

C. #B050E0

D. #C864F0

Explanation: To convert an RGB decimal value to hexadecimal, each component (Red, Green, Blue) must be converted individually to its two-digit hexadecimal equivalent. For R=192: 192 ÷ 16 = 12 remainder 0 (12 in hex is C, so C0). For G=96: 96 ÷ 16 = 6 remainder 0 (6 in hex is 6, so 60). For B=240: 240 ÷ 16 = 15 remainder 0 (15 in hex is F, so F0). Combining these gives #C060F0.

Question 5: In the HSV experiment, the Hue slider controls the color's intensity and ranges from 0-100%.

A. Yes

B. No

Explanation: The study materials state that in the HSV experiment, Hue is controlled by a slider from 0-360°, not 0-100%. Saturation controls intensity.