Advertisements
Advertisements
प्रश्न
Name the seven prominent colours of the white light spectrum in order of their increasing frequencies.
Advertisements
उत्तर
The seven colours in the order of increasing frequencies are as follows:
Red < orange < yellow < green < blue < indigo < violet.
APPEARS IN
संबंधित प्रश्न
Name the subjective property of light related to its wavelength.
The smoke from a fire looks white. Which of the following statements is true?
1) Molecules of the smoke are bigger than the wavelength of light
2) Molecules of the smoke are smaller than the wavelength of light.
Which colour of white light is deviated by a glass prism
- the most and
- the least?
How does the speed of light in glass change on increasing the wavelength of light?
Calculate the frequency of yellow light of wavelength 550 nm. The speed of light is 3 × 108 m/s-1.
Write the seven prominent colours present in white light spectrum in order of their increasing wavelength.
Which colour of white light is deviated most.
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?
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?
What is the range of wavelength of the spectrum of white light nm?
