Post Utme Rhema University 2020 Physics Question 17

Practice objective / multiple choice question 17 from the 2020 Post Utme Rhema University Physics examination.

Post Utme Rhema University 2020 Physics Objective / Multiple Choice
Question 17 POST_UTME_RHEMA_UNIVERSITY • 2020 • PHYSICS • objective
Post Utme Rhema University 2020 Physics Question 17 diagram

A beam of light of wavelength $\lambda$ is incident on a \single slit of width $a$. The screen is placed at a dis\tance $D$ from the slit. Calculate the angle $\theta$ at which the first minimum occurs.

Answer Options

Correct Answer A. \sin \theta = \frac{\lambda}{a}
B. \sin \theta = \frac{\lambda}{D}
C. \sin \theta = \frac{a}{D}
D. \sin \theta = \frac{\lambda D}{a}
Correct Answer
A
Correct Option:
\sin \theta = \frac{\lambda}{a}

About This Question

This is Post Utme Rhema University 2020 Physics Question 17. It is one of the objective questions from the 2020 Post Utme Rhema University Physics examination.

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