MCQ Collection
EJU Physics MCQs
Practice EJU Physics questions with answers and explanations.
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Correct Answer: D. 20 m/s
Explanation:
Wave speed v=fλ.
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Correct Answer: A. 48 m
Explanation:
Distance = speed × time.
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Correct Answer: C. 8 m/s
Explanation:
Wave speed v=fλ.
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Correct Answer: B. 3.33333 A
Explanation:
Ohm’s law: I=V/R.
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Correct Answer: C. 4.33333 °C
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Correct Answer: C. It remains constant
Explanation:
Total momentum is conserved in an isolated system.
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Correct Answer: A. 364.5 J
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Correct Answer: A. 3 m/s
Explanation:
Wave speed v=fλ.
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Correct Answer: A. 1.28571 A
Explanation:
Ohm’s law: I=V/R.
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Correct Answer: D. 4.06667 °C
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Correct Answer: C. It remains constant
Explanation:
Total momentum is conserved in an isolated system.
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Correct Answer: A. Its frequency increases
Explanation:
The Doppler effect raises observed frequency for an approaching source.
