Advertisements
Advertisements
प्रश्न
Suggest one way, in each case, by which we can detect the presence of Infrared radiations.
Advertisements
उत्तर
These are detected by a thermopile.
APPEARS IN
संबंधित प्रश्न
What is a rainbow? What are the two conditions necessary for the formation of a rainbow in the sky?
- A beam of monochromatic light undergoes minimum deviation through an equiangular prism, how does the beam pass through the prism, with respect to its base?
- If white light is used in the same way as in part (a) above, what change do you expect in the emergent beam?
- What conclusion do you draw about the nature of white light in part (b)?
When we place a glass prism in the path of a narrow beam of white light a spectrum is obtained. What happens when a second identical prism is placed in an inverted position with respect to the first prism? Draw a labelled ray diagram to illustrate it.
If a monochromatic beam of light undergoes minimum deviation through an equiangular prism, how does the beam pass through the prism, with respect to its base?
How can the presence of ultraviolet radiation be detected?
Distinguish between an impure spectrum and a pure spectrum.
Write the range of wavelength of the infrared spectrum.
The splitting of white light in to seven colors is called ______.
Which of the following is a natural phenomenon which is caused by the dispersion of sunlight in the sky?
In dispersion, the color of light that will bend more is ______.
