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प्रश्न
Write the range of wavelength of the visible spectrum.
उत्तर
The wavelength range for the visible spectrum is from 4000 Å to 7900 Å.
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संबंधित प्रश्न
Why do the component colours of incident white light split into a spectrum while passing through a glass prism, explain
In the following diagram the correctly marked angles are :
(a) ∠A and ∠e
(b) ∠i, ∠A and ∠D
(c) ∠A ∠r and ∠e
(b) ∠A ∠r and ∠D
Draw a diagram to show the refraction of light through a glass prism. On this diagram, mark
(i) incident ray
(ii) emergent ray, and
(iii) angle of deviation.
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
Explain briefly, with the help of a neat labelled diagram, how white light gets dispersed by a prism. On which surface of a prism, there is both dispersion and deviation of light, and on which surface of the prism, there is only deviation of light ?
The wavelength range of white light is ______.
Suggest one way, in each case, by which we can detect the presence of Infrared radiations.
Write an Explanation.
Critical angle
Observe the given figure and write appropriate phenomenon of light in the box.
State True or False:
"Wavelength of red light is close to 700 nm.”
