For Fraunhoffer diffraction to occur

Light source should be at infinity

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Both source and screen should be at infinity

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Only the source should be at finite distance

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Both source and screen should be at finite distance

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Solution

The correct option is A Both source and screen should be at infinity
According to the condition of Fraunhofer diffraction’s experimental set-up, both source and screen should be at infinity.

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Similar questions

Q. Read the statements A and B and mark the correct option.
Statement A: In Fresnel diffraction phenomenon, the source or screen or both are at finite distances from the aperture.
Statement B: In Fraunhoffer diffraction, lenses are used to modify the incoming light.

Q. A: Fresnel diffraction occurs when the source of light or the screen or both are at a finite distance from the diffracting device
B: Diffracted light can be used to estimate the helical structure of nuclic acids

Q. Two light sources of

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and

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Q. Two light sources of intensities 8 cd and 12 cd are placed on the same side of a photometer screen at a distance of 40 cm from it. Where should a 80 cd source be placed to balance the illuminance?

Two light sources of intensities 8 cd and 12 cd are placed on the same side of a photometer screen at a distance of 40 cm from it, Where should a 80 cm source be placed to balance the illuminance ?

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For Fraunhoffer diffraction to occur

The correct option is A Both source and screen should be at infinityAccording to the condition of Fraunhofer diffraction’s experimental set-up, both source and screen should be at infinity.

The correct option is A Both source and screen should be at infinity
According to the condition of Fraunhofer diffraction’s experimental set-up, both source and screen should be at infinity.