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PPSC Past Paper 2025 (Junior Clerk Morning)
PPSC · 2025 · Practice with instant answers and explanations
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99 Past Paper MCQs
Question 70 of 99
71%
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Question
70
Past Paper
PPSC
If frequency is 100 kHz at wavelength 3000 m, what is it at 500 m?
A
700 kHz
B
600 kHz
C
500 kHz
D
400 kHz
Correct Answer:
Option B — 600 kHz
Explanation:
Frequency is inversely proportional to wavelength, so 100×3000/500 equals 600 kHz.
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