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प्रश्न
An imaginary material reflects red light, scatters green light, transmits blue light, and absorbs yellow, orange, and violet light. A cube of this material is shown in the given diagram.
The surface is illuminated with a beam of white light. What colour will this cube appear?
(i) from above,
(ii) from below and
(iii) from the sides?
उत्तर
When viewed from above – Red.
When viewed from below – Blue.
When viewed from sides – Green.
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संबंधित प्रश्न
Name the subjective property of light related to its wavelength.
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2) Molecules of the smoke are smaller than the wavelength of light.
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- the most and
- the least?
How does the speed of light in glass change on increasing the wavelength of light?
What is the range of wavelength of the spectrum of white light in Å?
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- If a slit is placed in between the prism and the screen to pass only the light of green colour, what will you then observe on the screen?
- What conclusion do you draw from the observation in part (b) above?
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Name the seven prominent colours of the white light spectrum in order of their increasing frequencies.
Name four colours of the spectrum of white light which have wavelength longer than blue light.
Write approximate wavelength for (i) blue (ii) red light. Which colour has the higher speed in a vacuum? Which colour has the higher speed in the glass?
