Advertisements
Advertisements
प्रश्न
Write the range of wavelength of the infrared spectrum.
Advertisements
उत्तर
The wavelength range for the infrared spectrum is from 7900 Å to 107 Å.
संबंधित प्रश्न
Study the following figure in which a student has marked the angle of incidence (∠i), angle of refraction (∠r), angle of emergence (∠e), angle of prism (∠A) and the angle of deviation (∠D). The correctly marked angles are
(a) ∠A and ∠i
(b) ∠A, ∠i and ∠r
(c) ∠A, ∠i, ∠e and ∠D
(d) ∠A, ∠i, ∠r and ∠D
In the figure given alongside, a narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism, it produces a spectrum YX on the screen.
Why do different colours of white light bend through different angles with respect to the incident beam of light?
What acts as tiny prisms in the formation of a rainbow?
What do you understand by the term spectrum? Name the various colours present in the spectrum of sunlight.
What conclusion do you draw about the nature of white light in part (b)?
Make the correct choice for each of the following:
Which one of the following Fig correctly shows the path of the ray through the glass block?
Which characteristic property of light is responsible for the blue colour of the sky?
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?
State the correct sequence (1-7) of colours in the spectrum formed by the prisms A and B, shown in the following figure.
Observe the given diagram and answer the questions:
- Name the process shown in the figure.
- Name the colour that deviates the most.
- Name the colour that deviates the least.
- Name any one phenomenon in nature which is based on the above process.
- Define ‘spectrum’.
