Advertisements
Advertisements
प्रश्न
A ray of white light is passed through a glass prism and a spectrum is obtained on a screen.
- Name the seven colours of the spectrum in order.
- Do the colours have the same width in the spectrum?
- Which of the colour of the spectrum of white light deviates (i) the most, (ii) the least?
Advertisements
उत्तर
- Violet, Indigo, Blue, Green, Yellow, Orange, and Red.
- No, different colours have different widths in the spectrum.
-
- The violet colour deviates the most.
- The red colour deviates the least.
APPEARS IN
संबंधित प्रश्न
The path of a ray of light passing through a glass prism is shown below:
In this diagram, the angle of prism, angle of incidence, angle of emergence and angle of deviation, respectively, have been represented by:
(A) O, Y, Z and N,
(B) P, Y, M and Z,
(C) O, X, M and Z,
(D) P, X, Z and N.
As light rays emerge from a glass prism into air, are they refracted towards or away from the normal?
How does the speed of light determine the optical density of a medium?
In an experiment to trace the path of a ray of light through a glass prism for different values of angle of incidence a student would find that the emergent ray:
(A) is parallel to the incident ray
(B) perpendicular to the incident ray
(C) is parallel to the refracted ray
(D) bends at an angle to the direction of incident ray
A wave has wavelength 50Å of State the speed in vacuum.
How can the presence of ultraviolet radiation be detected?
Write the range of wavelength of the ultraviolet spectrum.
The splitting of white light in to seven colors is called ______.
Which one of the following is involved for the formation of rainbow in the sky?
Curved mirrors have surfaces that are spherical, cylindrical, parabolic, and ellipsoid.
