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Eccentricity of Ellipse

Two identical...

Question

Two identical narrow slits $S_{1}$ and $S_{2}$ are illuminated by light of wavelength $λ$ from a point source P. If, as shown in the diagram, the light is then allowed to fall on a screen, and if n is a positive integer, the condition for destructive interference at Q is :-

(t_{1} - t_{2}) = (2 n + 1) λ / 2

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(t_{3} - t_{4}) = (2 n + 1) λ / 2

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(t_{1} - t_{2}) - (t_{3} + t_{4}) = n λ

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None of these

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Solution

The correct option is D None of these
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Similar questions

S_{1}

S_{2}

λ

P

n

Q

T_{1}, T_{2}, T_{3}, \dots

S_{1} = T_{1} + T_{2} + T_{3} + \dots + T_{n}

S_{2} = T_{2} + T_{4} + T_{6} + \dots + T_{n - 1}

n

\frac{S_{1}}{S_{2}}

A block of mass 'm' is suspended by different springs of spring constants shown in the figure.

T_{1}, T_{2}, T_{3}, \dots

S_{1} = T_{1} + T_{2} + T_{3} + \dots + T_{n}

S_{2} = T_{2} + T_{4} + T_{6} + \dots + T_{n - 1}

n

\frac{S_{1}}{S_{2}}

T_{1}

T_{4}

T_{2}

T_{3}

T_{2} > T_{2} > T_{3} > T_{4}

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