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JCECE SERIES
Physics

Electromagnetic Waves

4 previous year questions.

Volume: 4 Ques
Yield: Medium

High-Yield Trend

1
2011
1
2010
1
2009
1
2007

Chapter Questions
4 MCQs

01
PYQ 2007
medium
physics ID: jcece-20
For sky wave propagation of 10 MHz signal, what should be the minimum electron density in ionosphere?
1

∼ 1.2 x 1012 m-3

2

∼ 106 m-3

3

∼ 1014 m-3

4

∼ 1022 m-3

02
PYQ 2009
medium
physics ID: jcece-20
The equation of a simple harmonic wave is given by , where and are in meter and time is in second. The period of the wave in second will be
1
0.04
2
0.01
3
1
4
5
03
PYQ 2010
medium
physics ID: jcece-20
Two coherent sources of different intensities send waves which interfere. The ratio of maximum intensity to the minimum intensity is 25. The intensities of the sources are in the ratio
1
25:01:00
2
5:01
3
9:04
4
25:16:00
04
PYQ 2011
medium
physics ID: jcece-20
Two trains are moving towards each other with speeds of 20 m/s and 15 m/s relative to the ground. The first train sounds a whistle of frequency 600 Hz, the frequency of the whistle heard by a passenger in the second train before the train meeets is (the speed of sound in air is 340 m/s)
1
600 Hz
2
585 Hz
3
645 Hz
4
666 Hz

About Electromagnetic Waves - JCECE

Electromagnetic Waves is a vital chapter for JCECE aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.

By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.

Frequently Asked Questions

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Review the topic breakdown to see which sub-topics within Electromagnetic Waves carry the most weight. Then, tackle the questions iteratively to solidify your understanding.