Mnemonics: The Human Eye and the Colourful World | Science Class 10 PDF Download

1. The Human Eye

Mnemonic: "Clever Lions Investigate Real Tigers Efficiently"

• Clever (Cornea): The Cornea is the eye's transparent front that bends light as it enters.
• Lions (Lens): The Lens adjusts focus, just like a lion focusing on its prey.
• Investigate (Iris): The Iris controls the pupil size, regulating light entry, much like a detective investigating clues.
• Real (Retina): The Retina captures the image and sends signals, as a real photo captures moments.
• Tigers (Through Optic Nerve): Signals travel Through the optic nerve, like tigers moving through the jungle.
• Efficiently (Experience in Brain): The brain Efficiently processes these signals, giving us a clear visual experience.

2. Dispersion of White Light by a Glass Prism

Mnemonic: “VIBGYOR”

It is a handy way to remember the sequence of colors in a visible light spectrum when white light is dispersed through a glass prism.

• Violet
• Indigo
• Blue
• Green
• Yellow
• Orange
• Red

3. For the parts of the eye

Mnemonic: "Cats Play In Light Rooms Very Often" 

• C - Cornea
• P - Pupil
• I - Iris
• L - Lens
• R - Retina
• V - Vitreous humor
• O - Optic nerve

This mnemonic helps recall the major parts of the human eye in the sequence of light entering the eye.

4. For the dispersion of light in a prism

Mnemonic: "Rich Old Yak Grew Big Indigo Vines"

• R - Red
• O - Orange
• Y - Yellow
• G - Green
• B - Blue
• I - Indigo
• V - Violet

This mnemonic helps remember the colors in the order they appear during the dispersion of white light by a prism.