Question

ROY G. BIV is a kind of
Select one:
a. Rainbow
b. Optics
c. Mnemonic
d. all​

Answer 1

ROYGBIV is an acronym for the sequence of colours commonly described in a rainbow: red, orange, yellow, green, blue, indigo, and violet.

• A mnemonic  is any learning technique that aids information retention or retrieval (remembering) in the human memory for better understanding.
• Mnemonics make use of elaborative encoding, retrieval cues, and imagery as specific tools to encode information in a way that allows for efficient storage and retrieval.
• Commonly encountered mnemonics are often used for lists and in auditory form, such as short poems, acronyms, initialisms, or memorable phrases.
• The word "mnemonic" is derived from the Ancient Greek word (mnēmonikos), meaning 'of memory' or 'relating to memory'.
• Mnemonic systems are techniques or strategies consciously used to improve memory.
• They help use information already stored in long-term memory to make memorization an easier task.
• A rainbow is a phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky.
• A rainbow is a multicolored arc made by light striking water droplets.
• Rainbows are the result of the refraction and reflection of light.
• Both refraction and reflection are phenomena that involve a change in a wave's direction.
• Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it.
• Like all the different types of light, the spectrum of visible light is absorbed and emitted in the form of tiny packets of energy called photons.
• These photons have both the properties of a wave as well as a particle.
• Hence this type of property is called wave-particle duality and the study of light in the area of physics is known as Optics.

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