Advertisements
Advertisements
प्रश्न
Match the Columns:
| Column ‘A’ | Column ‘B’ |
| The wavelength of red light | (a) 600 nm |
| (b) 700 nm | |
| (c) 500 nm |
उत्तर
| Column ‘A’ | Column ‘B’ |
| The wavelength of red light | (b) 700 nm |
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.
Why do the component colours of incident white light split into a spectrum while passing through a glass prism, explain
Draw a ray diagram to show the dispersion of white light.
Fill in the blank with suitable word:
When a ray of light enters a prism, it bends ................ the normal ; as it leaves the prism, it bends ................. the normal.
Draw a diagram to show how white light can be dispersed into a spectrum by using a glass prism. Mark the various colours of the spectrum.
The splitting up of white light into seven colours on passing through a glass prism is called:
(a) refraction
(b) deflection
(c) dispersion
(d) scattering
The coloured light having the maximum speed in glass prism is:
(a) blue
(b) green
(c) violet
(d) yellow
The seven colours in the spectrum of sunlight in order, are represented as :
What do you understand by the term spectrum? Name the various colours present in the spectrum of sunlight.
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 its one use.
A student has to trace the path of a ray of light through a glass prism. List four precautions he should observe for better results.
Write the range of wavelength of the ultraviolet spectrum.
Write the range of wavelength of the infrared spectrum.
Write an Explanation.
Critical angle
Rainbow is a beautiful natural phenomenon. It is the combined effect of a natural three processes together produced by light. Write it into the circle.
Observe the given figure and answer the following questions.
- Which colour light rays bend most?
- Which colour light rays bend least.
- What is the wavelength of violet light rays?
The phenomena of light involved in the formation of rainbow are ______.
Why do we see a rainbow in the sky only after rainfall?
______ colour is deviated the least in the spectrum of white light obtained with a glass prism.
