Advertisements
Advertisements
Question
Out of the following, the colour of light having the maximum wavelength is:
(a) violet
(b) indigo
(c) green
(d) orange
Advertisements
Solution
orange
Of the given colours of light, orange has the maximum wavelength.
APPEARS IN
RELATED QUESTIONS
(i) A ray of white light breaks up into its components while passing through a glass prism. Draw a ray diagram to show the path of rays.
(ii) Mark the least deviated colour in your diagram
(iii) Why do different coloured rays deviate differently in a prism?
A beam of white light is shone onto a glass prism. The light cannot be:
(a) deviated
(b) dispersed
(c) focused
(d) refracted
The property of splitting of white light into its seven constituent colours is known as
Which is optically denser: water or air? Give reason
A ray of white light falls on a prism. Draw a ray diagram to show that the prism disperses the white light.
Explain the cause of dispersion of white light through a prism.
The diagram below shows the path taken by a narrow beam of yellow monochromatic light passing through an equiangular glass prism. If the yellow light is replaced by a narrow beam of white light incident at the same angle, draw another diagram to show the passage of white light through the prism and label it to show the effect of prism on the white light.
The frequency range of visible light is from 3.75 × 1014 Hz to 7.5 × 1014 Hz. Calculate its wavelength range. Take speed of light = 3 × 108 m/s.
In an experiment to trace the path of a ray of light through a triangular glass prism, a student would observe that the emergent ray
(a) is parallel to the incident ray.
(b) is along the same direction of incident ray.
(c) gets deviated and bends towards the thinner part of the prism.
(d) gets deviated and bends towards the thicker part (base) of the prism.
If a monochromatic beam of light undergoes minimum deviation through an equiangular prism, how does the beam pass through the prism, with respect to its base?
If white light is used in same way what change is expected in the emergent beam?
How can the presence of ultraviolet radiation be detected?
State two uses of ultraviolet radiation.
Write the range of wavelength of the ultraviolet spectrum.
The process of separation of light into its component colours while passing through a medium is called _______.
Observe the given figure and write appropriate phenomenon of light in the box.
When white light enters a glass prism from the air, the angle of deviation is least for ____________.
In dispersion, the color of light that will bend more is ______.
During dispersion of white light by prism placed in air, for a particular value of angle of prism,
