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
Study the following diagrams in which the path of a ray of light passing through a glass prism as traced by four students P, Q, R and S is shown:
The student who has traced the path correctly is
(A) P
(B) Q
(C) R
(D) S
What will happen if another similar glass prism is placed upside down behind the first prism?
A glass prism is able to produce the spectrum when white light passes through it, but a glass slab doesn’t produce any spectrum. Explain why it is so.
A wave has wavelength 50Å of name the wave.
Draw a labelled diagram: Dispersion of light through a prism.
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.
Write an Explanation.
Critical angle
Draw a neat and labelled diagram for dispersion of light.
What is a rainbow?
The dispersive powers of flint glass and crown glass are 0.053 and 0.034, respectively and their mean refractive indices are 1.68 and 1.53 for white light. Calculate the angle of the flint glass prism required to form an achromatic combination with a crown glass prism of refracting angle 4°:
