Question : Which of these travels in glass with minimum velocity?
Option 1: Red light
Option 2: Violet light
Option 3: Green light
Option 4: Yellow light
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Correct Answer: Violet light
Solution : The correct option is Violet light.
Violet light, with the shortest wavelength in the visible spectrum, traverses glass at a slower velocity compared to other lights. The speed of light in a substance, like glass, depends on the wavelength, or colour. In glass, shorter wavelengths (violet and blue) move more slowly than longer ones (red, yellow, and green), a phenomenon known as dispersion. Dispersion in a prism leads to the separation of white light into its constituent colours due to varying refractive indices, producing a rainbow effect.
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Question : Which colour of light from VIBGYOR has minimum wavelength?
Option 1: Violet
Option 2: Yellow
Option 3: Green
Option 4: Red
Question : Which colour of light from VIBGYOR has minimum energy?
Option 1: Green
Option 2: Violet
Option 3: Yellow
Question : Which of the following colours of light deviates least through the prism?
Option 1: Yellow
Option 2: Green
Option 3: Violet
Question : In diffraction of white light by a prism, which colour of light from VIBGYOR will be bent most?
Option 1: Red
Option 4: Violet
Question : Directions: If Blue means Pink, Pink means Green, Green means Yellow, Yellow means Red and Red means White, then what is the colour of turmeric?
Option 3: Pink
Option 4: Yellow
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