General Conditions for Interference For sustained interference of light to occur, the following conditions must be met: 1. Coherent sources of light are needed. 2. Amplitudes and intensities must be nearly equal to produce sufficient contrast between maxima and minima. 3. The source must be small enough to produce wide fringes.

Q: is the shape of the fringe on the screen when light diffracting from circular apertures? Write…

A: when light diffracting from circular aperture  we find a circular pattern with central maxima

Q: What is the wavelength of light falling on double slits separated by 2.03 um, if the third-order…

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Q: please reexplain this paragraph

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A: wavelength (λ) = 4.8×10-7 m slit separation (d) = 2×10-6 m

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A: Givenλ=628 nmD=78.5 cmx=1.75 cm=0.0175 m

Q: 1. Give one reason why you cannot use two separate light sources for Young's double slit experiment.…

A: solution as

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Q: Can you please explain these conceptual questions in detail? Thank you.

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Q: PRACTICE IT Use the worked example above to help you solve this problem. Light of wavelength 5.59 X…

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Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.