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प्रश्न
A wave has wavelength 50Å of State its one use.
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उत्तर
X-rays are used to study atomic arrangement in crystals as well as complex molecules.
संबंधित प्रश्न
Fill in the blank with suitable word:
When a ray of light enters a prism, it bends ................ the normal ; as it leaves the prism, it bends ................. the normal.
Which of the following colour of white light is least deviated by the prism?
(a) green
(b) violet
(c) indigo
(d) yellow
The speed of light in air or vacuum is
A ray of light moving from an optically rarer to a denser medium
How does the speed of light determine the optical density of a medium?
Out of air and glass, which is optically rarer? Give reason.
Explain the cause of dispersion of white light through a prism.
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.
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.
Differentiate between a glass slab and a glass prism.
