Advertisements
Advertisements
प्रश्न
The wavelengths of violet and red light are 4000 Å and 8000 Å respectively. Which of the two has the higher frequency?
Advertisements
उत्तर
A higher frequency is associated with a lower wavelength. Thus, 4000 Å wavelength violet light has a greater frequency.
APPEARS IN
संबंधित प्रश्न
Draw a ray diagram to explain the term angle of deviation.
A ray of light moving from an optically rarer to a denser medium
How does the speed of light determine the optical density of a medium?
Which is optically denser: water or air? Give reason
In the following diagram, the correctly marked angles are
(A) All
(B) Only ∠i and ∠A
(C) ∠i, ∠r and ∠A
(D) ∠i, ∠A and ∠D
If white light is used in same way what change is expected in the emergent beam?
Write three conditions necessary to obtain a pure spectrum on a screen. Name the instrument in which the conditions stated by you are fulfilled.
Write the range of wavelength of the visible spectrum.
In the diagram, a narrow beam of white light is incident on a right-angled isosceles prism. The critical angle of the material of prism for the yellow colour of white light is 45°. Complete the diagram to show the path of blue, yellow, and red colours of white light till they emerge out of the prism.

Say TRUE or FALSE
After passing through a prism, white light splits into a band of seven colours
