Class 12PhysicsWave OpticsFresnel distance, Diffraction through circular slit, concept of Airy Disc, Rayleigh Criterion of Resolution , Fraunhofer diffraction
EasyWhat do the Fraunhofer lines in the solar spectrum indicate?
- AAbsorption of certain wavelengths in the photosphere of the Sun.
- BAbsorption of certain wavelengths in the chromosphere of the Sun.
- CThe Sun does not emit all wavelengths.
- DNuclear reactions occurring in the Sun.
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Similar Questions
The direction of the first secondary maximum in the Fraunhofer diffraction pattern at a single slit is given by ($a$ is the width of the slit):
Medium
View SolutionThe limit of resolution of a telescope and a microscope is imposed because of which phenomenon?
Easy
View SolutionFresnel diffraction is produced due to light rays falling on a small obstacle. The intensity of light at a point on a screen beyond an obstacle depends on
$A$ Fraunhofer diffraction pattern due to a narrow slit is obtained on a screen placed at a distance $D$ from the slit whose slit width is $a$. The distance of the first secondary maximum from the central maximum is
In a Fraunhofer diffraction experiment at a single slit using light of wavelength $400 \ nm$,the first minimum is formed at an angle of $30^{\circ}$. The direction $\theta'$ of the first secondary maximum is given by
DifficultKCET 2008
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