Online Engineering Courses

Chapter 24: Engineering Physics Practice Tests

Engineering Physics MCQs - Chapter 24

# Optical Diffraction Multiple Choice Questions (MCQ Quiz) PDF - 1

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The Multiple Choice Question (MCQ Quiz): Diffraction pattern of circular disc shaped intermediate dark and bright fringes with a central bright spot, formed when light passes through a small circular aperture, is called PDF, Optical Diffraction App Download (Free) with curved aperture diffraction, circular aperture diffraction, triangular aperture diffraction, and rectangular aperture diffraction choices to enroll in online colleges. Solve circular aperture diffraction quiz questions, download Google eBook (Free Sample) for online engineering programs.

## Physics: Optical Diffraction MCQs Questions

MCQ: Diffraction pattern of circular disc shaped intermediate dark and bright fringes with a central bright spot, formed when light passes through a small circular aperture, is called

A) Circular Aperture Diffraction
B) Curved Aperture Diffraction
C) Triangular Aperture Diffraction
D) Rectangular Aperture Diffraction

MCQ: In Bragg's Law, angle of incident and reflection is called

A) Bragg's angle
B) Manchest angle
C) Dual angle
D) Newton;s angle

MCQ: If wave's first side diffraction maximum is 15° and is coinciding with first minimum of red light, then wavelength of light is

A) 430 nm
B) 120 nm
C) 350 nm
D) 1200 nm

MCQ: If θ is angular separation of two lines whose wavelength differ by Δλ, then dispersion is equals to

A) Δλ/Δθ
B) Δθ/Δλ
C) Δθ/2Δλ
D) ΔθxΔλ

MCQ: If a slit of width 'a' is illuminated by white light, then value of 'a' at which the first minimum for red light of wavelength 650 nm appears at θ=15°, is

A) 25 µm
B) 2.5 µm
C) 250 µm
D) 25 m