Diffraction of Light in Hindi. We covered all the Diffraction of Light in Hindi in this post for free so that you can practice well for the exam.
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Mock Test on Diffraction of Light for Students
The width of diffraction fringes varies :
(A) directly as the distance between the slit and the screen
(B) inversely as the wavelength
(C) directly as the width of the slit
(D) independent of the distance between the slit and the screen
Option a - directly as the distance between the slit and the screen
Scattering of light is a direct consequence of
(A) diffraction
(B) interference
(C) dispersions
(D) reflection
Option a - diffraction
While both light and sound show wave character, diffraction is much harder to observe in light. This is because
(A) light does not require a medium
(B) the wavelength of light is far smaller
(C) waves of light are transverse
(D) the speed of light is far greater.
Option b - the wavelength of light is far smaller
The compact disc shows color in white light due to the:
(A) interference
(B) polarization
(C) diffraction
(D) scattering
Option c - diffraction
The bending of light around corners of an obstacle is called :
(A) dispersion
(B) refraction
(C) deviation
(D) diffraction
Option d - diffraction
A diffraction pattern is obtained using red light. Which of the following happens if the red light is replaced by blue light?
(A) There is no change
(B) Diffraction bands become narrower and more crowded
(C) Diffraction bands become broader and farther
(D) Bands disappear
Option b - Diffraction bands become narrower and more crowded
A parallel beam of light is incident normally on a narrow slit. A diffraction pattern is formed on a screen placed perpendicular to the direction of the incident beam. At the first minimum of the diffraction pattern, the phase difference between the rays coming from the two edges of the slit is :
(A) 2π
(B) π
(C) π/2
(D) π/3
Option a - 2π
Diffraction of light was discovered by :
(A) Young
(B) Hertz
(C) Grimaldi
(D) Malus
Option c - Grimaldi
The fringe pattern observed in young's double slit experiment is :
(A) diffraction pattern
(B) interference pattern
(C) a combination of diffraction and interference pattern
(D) neither interference nor diffraction pattern
Option c - a combination of diffraction and interference pattern
Yellow light is used in a single slit diffraction experiment with a slit width of 0.6 mm. If the yellow light is replaced by X-rays, then the observed pattern will reveal :
(A) that the central maximum is narrower
(B) more fringes will be seen
(C) less number of fringes will be seen
(D) no diffraction pattern will be seen
Option d - no diffraction pattern will be seen
The condition for observing Fraunhofer diffraction from a single slit is that the light wavefront incident on the slit should be :
(A) spherical
(B) plane
(C) cylindrical
(D) elliptical
Option b - plane
The condition for observing Fresnel's diffraction from a single slit is that the light wavefront incident on the slit should be :
(A) spherical
(B) plane
(C) cylindrical
(D) (A) or (C)
Option d - (A) or (C)
Sunlight filtering through tree leaves often makes circular patches on the ground because
(A) the sun is round
(B) light is transverse in nature
(C) the space through which light penetrates is round
(D) diffraction effects
Option d - diffraction effects
We covered all the diffraction of light in Hindi above in this post for free so that you can practice well for the exam.
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