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Science & Technology

Electromagnetic waves

Electromagnetic waves is a Science & Technology concept from the MPSC syllabus, tested in 3 past MPSC questions (2014, 2021). Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.

Real questions

3

Years tested

2 · 2014–2021

In context

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What you need to know first

Wave motionElectromagnetic spectrum Speed of light

Real questions that test this

प्रकाशाचा वेग ____________ असतो. Speed of light is ____________.

1)3×10⁸ मीटर प्रतिसेकंद / 3×10⁸ m/s✓ Correct

2)3×10⁸ सेंटीमीटर प्रतिसेकंद / 3×10⁸ cm/s

3)3×10⁸ किलोमीटर प्रतिसेकंद / 3×10⁸ km/s

4)3×10⁸ इंच प्रतिसेकंद / 3×10⁸ inch/s

The speed of light in a vacuum is a fundamental physical constant, approximately equal to 3 × 10⁸ meters per second.

प्रकाश तरंग मुख्यत: ____________ स्वरूपात असतात. Light is generally in the form of :

1)चुंबकीय तरंग / Magnetic Waves

2)विद्युत तरंग / Electrical Waves

3)विद्युत चुंबकीय तरंग / Electromagnetic Waves✓ Correct

4)वरीलपैकी एकही नाही / None of the above

Light travels in the form of electromagnetic waves, specifically transverse waves.

रेडिओ तरंगाचा वेग हा ________ असतो. The velocity of radio waves is ________

1)प्रकाशाच्या वेगापेक्षा जास्त / Greater than velocity of light

2)प्रकाशाच्या वेगा एवढाच / As that of velocity of light✓ Correct

3)प्रकाशाच्या वेगापेक्षा कमी / Less than velocity of light

4)प्रकाशाच्या वेगाच्या दोन पट / Exactly double the velocity of light

Radio waves are electromagnetic waves. All electromagnetic waves travel through a vacuum at the speed of light (approximately 3 × 10⁸ m/s).

More Science & Technology concepts

Isotopes Chemistry Radioactivity Sound waves Taxonomy Atomic number Avogadro number Biodiversity Biology Molar mass Mole concept Plant morphology

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