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AFNS Academic Physics Waves MCQs Test 7
AFNS Quiz (Physics)
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AFNS Academic Physics Waves MCQs Test 7

Practice AFNS 2026 Academic Test Physics MCQs from Waves. Get instant results with Explanation.

Practice Quiz 7 for "Waves" (Physics). Total 70 MCQs available, split into 7 quizzes. Start with the fundamentals and build a strong base. Mastering these concepts is essential for securing a high percentile in AFNS.

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Conducting Body: Pak Army
Frequency: Annual | Time: 120 Minutes
Negative Marking: No

⚡ Test Pattern (Total: 100 MCQs):

Merit Formula: Typically, the aggregate is calculated as: (AFNS × 50%) + (FSc × 40%) + (Matric × 10%). However, it may have changes for merit calculation formula and admission criteria. Please confirm the official criteria from the offical website.

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1. A bat emits ultrasonic sound waves and detects the echo to locate prey. This uses the principle of:
2. The phenomenon of beats is used to tune musical instruments because beats indicate:
3. If two sound waves have frequencies 256 Hz and 260 Hz, the beat frequency is:
4. The Doppler formula for sound when source is stationary and observer moves towards the source is:
5. The Doppler formula for sound when observer is stationary and source moves towards the observer is:
6. A source of sound moves towards a stationary observer. The observed wavelength is:
7. The wave equation for a harmonic wave traveling in the +x direction is:
8. The angular wave number k is related to wavelength λ by:
9. The angular frequency ω is related to frequency f by:
10. The wave speed in terms of ω and k is:

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