Explore topic-wise MCQs in Engineering Physics Questions and Answers.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.	The angular separation between the central maximum and first order minimum of the diffractions pattern due to a single slit of width 0.25 mm, when light of wavelength 5890 Å is incident normally on the slit, is ________
A.	7.1 minute
B.	8.1 minute
C.	9.1 minute
D.	10.1 minute
Answer» C. 9.1 minute

Discussion

2.	What is the half angular width of the central bright maximum in the Fraunhofer diffraction pattern of a slit of width 12 X 10-7m when the slit is illuminated by monochromatic light of wavelength 6000 Å.
A.	20°
B.	30°
C.	40°
D.	50°
Answer» C. 40°

Discussion

Explore topic-wise MCQs in Engineering Physics Questions and Answers.

The angular separation between the central maximum and first order minimum of the diffractions pattern due to a single slit of width 0.25 mm, when light of wavelength 5890 Å is incident normally on the slit, is ________

What is the half angular width of the central bright maximum in the Fraunhofer diffraction pattern of a slit of width 12 X 10-7m when the slit is illuminated by monochromatic light of wavelength 6000 Å.