EVERYDAY SCIENCE

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PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The frequency of violet light is ____ that of yellow light.
A
higher than
B
lower than
C
the same as
D
faster than
Explanation: 

Detailed explanation-1: -Violet: 380–450 nm (688–789 THz frequency) Blue: 450–495 nm. Green: 495–570 nm. Yellow: 570–590 nm.

Detailed explanation-2: -In order from lowest frequency to highest, they are red, orange, yellow, green, blue, indigo, and violet.

Detailed explanation-3: -Ultraviolet radiations and X-rays have a frequency higher than that of violet light.

Detailed explanation-4: -Blue light has shorter waves, with wavelengths between about 450 and 495 nanometers. Red light has longer waves, with wavelengths around 620 to 750 nm. Blue light has a higher frequency and carries more energy than red light.

Detailed explanation-5: -Violet has a higher frequency (approximately 7.5×1014 Hz 7.5 × 10 14 Hz ) than red light (approximately 4.3×1014 Hz 4.3 × 10 14 Hz ). Since the speed of both waves is the same, we infer that violet has a shorter wavelength (400 nm ) than red (700 nm ).

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