COMEDK · Physics · 24. Electromagnetic Waves
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.
| No. | Column I | No. | Column II |
|---|---|---|---|
| A | Radiowaves | P | \(10^{18}\) to \(10^{20}\) Hz |
| B | Microwaves | Q | \(10^{11}\) to \(5 \times 10^{14}\) Hz |
| C | Infrared | R | \(10^{4}\) to \(10^{8}\) Hz |
| D | X-rays | S | \(10^{9}\) to \(10^{12}\) Hz |
- A (A)-(R)
(B)-(P)
(C)-(S)
(D)-(Q) - B (A)-(R)
(B)-(S)
(C)-(P)
(D)-(Q) - C (A)-(R)
(B)-(S)
(C)-(Q)
(D)-(P) - D (A)-(R)
(B)-(Q)
(C)-(S)
(D)-(P)
Answer & Solution
Correct Answer
(C) (A)-(R)
(B)-(S)
(C)-(Q)
(D)-(P)
Step-by-step Solution
Detailed explanation
The electromagnetic spectrum is categorized by frequency ranges as follows: Radiowaves have a frequency range typically from \(10^4 \text{ Hz}\) to \(10^8 \text{ Hz}\). This matches (A) with (R). Microwaves have a frequency range typically from \(10^9 \text{ Hz}\) to…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- Dielectric constant of a metal isCOMEDK 2016 Easy
- Wires made of iron and silicon are cooled from \(50^{\circ} \mathrm{C}\) to \(30^{\circ} \mathrm{C}\), thenCOMEDK 2012 Easy
- To get 300 MW electric power for half an hour, how much mass is to be completely converted into energy?COMEDK 2025 Medium
- The following are the graphs of potential barrier versus width of the depletion region for a p-n junction diode.
Which of the following is correct?I II III IV A - unbiased diode A - Forward biased diode A - unbiased diode A - unbiased diode B - Reverse biased B - Reverse biased B - Forward biased B - unused diode C - Forward biased C - unbiased C - Reverse biased C - Forward biased COMEDK 2024 Medium - What is the dimensional formula for electric flux?COMEDK 2025 Medium
- Incident light of wavelength \(\lambda=800 \mathrm{~nm}\) produces a diffraction pattern on a screen \(1.5 \mathrm{~m}\) away when it passes through a single slit of width \(0.5 \mathrm{~mm}\). The distance between the first dark fringes on either side of the central bright fringe isCOMEDK 2024 Medium
More PYQs from COMEDK
- A pump on the ground floor of a building can pump up water to fill the tank of \(30 \mathrm{~m}^{3}\) in \(15 \mathrm{~min}\). If the tank is \(40 \mathrm{~m}\) above the ground, and the efficiency of the pump is \(30 \%\), the power consumed by the pump is \(\left(g=10 \mathrm{~ms}^{-2}\right)\)COMEDK 2014 Medium
- In the following question a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below.
Assertion (A): van't Hoff factor for a solution of benzoic acid in benzene is less than one.
Reason(R): Benzoic acid undergoes dissociation in benzene and its calculated molecular mass using colligative properties is lower than its actual molecular mass.COMEDK 2024 Medium - A bullet of mass \(m\) hits a mass \(M\) and gets embedded in it. If the block rises to a height \(h\) as a result of this collision, the velocity of the bullet before collision isCOMEDK 2022 Medium
- \(\int_{-\pi / 2}^{\pi / 2} \sin x d x\)COMEDK 2021 Easy
- The number of common tangent to the circle \(x^2+y^2=9\) and \(x^2+y^2-6 x-8 y+21=0\)COMEDK 2024 Medium
- \(\text { If }|\vec{a} \times \vec{b}|^2+|\vec{a} \cdot \vec{b}|^2=144 ~\&~|\vec{a}|=4 \text { then }|\vec{b}|=\)COMEDK 2024 Easy