1

COMEDK 2024 Evening Shift

MCQ (Single Correct Answer)

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Column - I lists the waves of the electromagnetic spectrum. Column - II gives approximate frequency range of these waves. Match Column - I and Column - II and choose the correct match from the given choices.

Column I | Column II | ||
---|---|---|---|

(A) | Radiowaves | (P) | $$ 10^{18} \text { to } 10^{20} \mathrm{~Hz} $$ |

(B) | Microwaves | (P) | $$ 10^{11} \text { to } 5 \times 10^{14} \mathrm{~Hz} $$ |

(C) | Infrared | (R) | $$ 10^4 \text { to } 10^8 \mathrm{~Hz} $$ |

(D) | X-rays | (S) | $$ 10^9 \text { to } 10^{12} \mathrm{~Hz} $$ |

2

COMEDK 2023 Morning Shift

MCQ (Single Correct Answer)

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-0

The ratio of amplitude of magnetic field to the amplitude of electric field of an electromagnetic wave propagating in vacuum is

3

COMEDK 2023 Morning Shift

MCQ (Single Correct Answer)

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A plane electromagnetic wave of frequency $$20 \mathrm{~MHz}$$ travels through a space along $$x$$-direction. If the electric field vector at a certain point in space is $$6 \mathrm{~Vm}^{-1}$$, then what is the magnetic field vector at that point?

4

COMEDK 2023 Evening Shift

MCQ (Single Correct Answer)

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What feature of the infrared waves make it useful for the haze photography?

Questions Asked from Electromagnetic Waves (MCQ (Single Correct Answer))

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