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प्रश्न
Write the range of wavelength of the infrared spectrum.
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उत्तर
The wavelength range for the infrared spectrum is from 7900 Å to 107 Å.
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.
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
Describe how you could demonstrate that white light is composed of a number of colours.
The colour of white light which is deviated the maximum on passing through the glass prism is:
(a) blue
(b) indigo
(c) red
(d) orange
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.
Distinguish between an impure spectrum and a pure spectrum.
Say TRUE or FALSE
After passing through a prism, white light splits into a band of seven colours
The periscope is an optical device with a polished surface that reflects the light falling on it.
What is a rainbow?
A prism of refractive index `sqrt2` and refracting angle A produces minimum deviation δm of a ray on one face at an angle of incidence 45°, The values of A and δm are, respectively ______.
