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प्रश्न
Draw a labelled diagram: Dispersion of light through a prism.
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उत्तर
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संबंधित प्रश्न
After tracing the path of a ray of light through a glass prism a student marked the angle of incidence (∠i), angle of refraction (∠r) angle of emergence (∠e) and the angle of deviation (∠D) as shown in the diagram. The correctly marked angles are :
(A) ∠i and ∠r
(B) ∠i and ∠e
(C) ∠i, ∠e and ∠D
(D) ∠i, ∠r and ∠e
The colour of white light which suffers the maximum bending (or maximum refraction) on passing through a glass prism is:
(a) yellow
(b) orange
(c) red
(d) violet
Why do you not see a spectrum of colours when light passes through a flat pane of glass?
Out of air and glass, which is optically rarer? Give reason.
Define the term dispersion of light.
While performing the experiment to trace the path of a ray of light passing through a glass prism, four students marked the incident ray and the emergent ray in their diagrams in the manner shown below. 
(A) I
(B) II
(C) III
(D) IV
Draw a labeled ray diagram to illustrate the dispersion of a narrow beam of white light when it passes through a glass prism.
A wave has wavelength 50Å of State the speed in vacuum.
A wave has wavelength 50Å of State its one use.
Answer the following:
What do you mean by dispersion? Name the different colours of light in the proper sequence in the spectrum of light.
Suggest one way, in each case, by which we can detect the presence of Infrared radiations.
The splitting of white light in to seven colors is called ______.
The periscope is an optical device with a polished surface that reflects the light falling on it.
The angle of deviation through a prism is minimum when
- Incident rays and emergent rays are symmetric to the prism.
- The refracted ray inside the prism becomes parallel to its base.
- The angle of incidence is equal to that of the angle of emergence.
- When the angle of emergence has doubled the angle of incidence.
Choose the correct answer from the options given below:
State True or False:
"Wavelength of red light is close to 700 nm.”
