AP EAMCET · PHYSICS · Electromagnetic Waves
Which of the following is/are the property/properties of a monochromatic electromagnetic wave propagating in the free space?
1. Electric and magnetic fields will have a phase difference \(\frac{\pi}{2}\).
2. The energy of the wave is distributed equally between electric and magnetic fields.
3. The pressure exerted by the wave is the product of its speed and energy density.
4. The speed of the wave is equal to the ratio of the magnetic field to the electric field.
- A 1 and 3
- B Only 2
- C 2 and 3
- D Only 4
Answer & Solution
Correct Answer
(B) Only 2
Step-by-step Solution
Detailed explanation
The energy of electromagnetic wave is equally distributed between electric and magnetic field. Some more properties of electromagnetic waves are as given below, (i) Electric and magnetic field will have zero phase difference. (ii) The pressure exerted by electromagnetic wave is…
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
- A block of mass 2 kg is placed on a rough horizontal surface. If a horizontal force of 20 N acting on the block produces an acceleration of \(7 \mathrm{~m} \mathrm{~s}^{-2}\) in it, then the coefficient of kinetic friction between the block and the suface is (Aceleration due to gravity \(=10 \mathrm{~m} \mathrm{~s}^{-2}\) )AP EAMCET 2025 Medium
- The elongation of copper wire of cross-sectional area \(3.5 \mathrm{~mm}^2\), in the figure shown, is
\(\left(\mathrm{Y}_{\text {copper }}=10 \times 10^{10} \mathrm{Nm}^{-2} \text { and } g=10 \mathrm{~ms}^{-2}\right)\)
AP EAMCET 2024 Medium - If \(R_C\) and \(R_B\) are respectively the resistances of in collector and base sides of the circuit, and \(\beta\) is the current amplification factor, then the voltage gain of a transistor amplifier in common emitter configuration isAP EAMCET 2024 Hard
- If \(|\overline{\mathrm{P}}+\overline{\mathrm{Q}}|=|\overline{\mathrm{P}}|=|\overline{\mathrm{Q}}|\) then the angle between \(\overline{\mathrm{P}}\) and \(\overline{\mathrm{Q}}\) isAP EAMCET 2024 Easy
- A cc camera is fabricated using a semiconducting material having a band gap of 3 eV. The wavelength of light it can detect is nearlyAP EAMCET 2025 Easy
- An electromagnetic wave of frequency \(45 \mathrm{MHz}\) travels in free space along \(X\)-axis. At some point and at some instant, the electric field has a maximum value of \(750 \mathrm{NC}^{-1}\) along \(Y\)-axis. The magnetic field at this position and time isAP EAMCET 2018 Easy
More PYQs from AP EAMCET
- If \(\mathbf{a}=\hat{i}+2 \hat{j}+3 \hat{k}, \mathbf{b}=2 \hat{i}+3 \hat{j}+\hat{k}\), \(\mathbf{c}=8 \hat{i}+13 \hat{j}+9 \hat{k}\) and \(x \mathbf{a}+y \mathbf{b}+z \mathbf{c}=0\), then \(\frac{x y}{z^2}=\)AP EAMCET 2022 Easy
- The foci of the ellipse \(\frac{x^2}{16}+\frac{y^2}{b^2}=1\) and the hyperbola \(\frac{x^2}{144}-\frac{y^2}{81}=\frac{1}{25}\) coincide. Then, the value of \(b^2\) isAP EAMCET 2015 Easy
- If the breaking strength of a rope is \(\frac{4}{3}\) times the weight of a person, then the maximum acceleration with which the person can safely climb up the rope is (g - accelereation due to gravity)AP EAMCET 2025 Medium
- Statement-I : In the interval \([0,2 \pi]\), the number of common solutions of the equations \(2 \sin ^2 \theta-\cos 2 \theta=0\) and \(2 \cos ^2 \theta-3 \sin \theta=0\) is two.
Statement-II : The number of solutions of \(2 \cos ^2 \theta-3 \sin \theta=0\) in \([0, \pi]\) is two.AP EAMCET 2025 Medium - Let \(\mathbf{a}, \mathbf{b}\) and \(\mathbf{c}\) be unit vectors such that \(\mathbf{a} \cdot \mathbf{b}=0=\mathbf{a} \cdot \mathbf{c}\) and the acute angle between \(\mathbf{b}\) and \(\mathbf{c}\) is \(\frac{\pi}{3}\), then \(|\mathbf{a} \times \mathbf{b}-\mathbf{a} \times \mathbf{c}|\) is equal toAP EAMCET 2021 Easy
- Assertion (A): Optical fibres are widely used in communication network.Reason (R) Optical fibres are small in size, light weight, flexible and there is no scope for interference in them.AP EAMCET 2004 Easy