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In a Fraunhoffer diffraction experiment ...

In a Fraunhoffer diffraction experiment at a single slit using light of wavelength 400 nm, the first minimum is formed at an angle of `30^@` Then the direction `theta` of the first secondary maximum is

A

`tan^(-1)((4)/(3))`

B

`60^(@)`

C

`sin^(-1)((3)/(4))`

D

`tan^(-1)((3)/(4))`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • In a Fraunhofer diffraction at single slit of width d with incident light of wavelength 5500 Ã…, the first minimum is observed, at angle 30^(@) . The first secondary maximum is observed at an angle theta=

    A
    `"sin"^(-1)((1)/(sqrt(2)))`
    B
    `"sin"^(-1)((1)/(4))`
    C
    `"sin"^(-1)((3)/(4))`
    D
    `"sin"^(-1)((sqrt(3))/(2))`

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