Physics Waves DUHS 2022
PMDC Verified Question 66 of 125
Distance between two consecutive antinodes in standing wave is
A
\( \lambda/4 \)
B
\( \lambda \)
C
\( 2\lambda \)
D
\( \lambda/2 \)
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: \( \lambda/2 \)
Concept:

Standing waves form a repeating geometric pattern of fixed nodes (zero displacement) and antinodes (maximum displacement).

Solution:

  • A full wavelength (\( \lambda \)) encompasses two complete loops (one positive, one negative).


  • The center of each loop is an antinode.


  • Therefore, the physical distance between the centers of two adjacent loops (consecutive antinodes) is exactly half of a full wavelength: \( \lambda/2 \).


Why other options are incorrect:

\( \lambda/4 \) is the distance from a node to the very next antinode. \( \lambda \) is the distance across two full loops.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

Previous Question All Waves MCQs Next Question

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.

Enter Arena Sprint iOS App Android App