Electromagnetic Waves PYQs - Last 10 Years
KCET / Physics / Electromagnetism / 15 recent questions
PhysicsElectromagnetism2017-2026
Practice 15 KCET Physics questions from Electromagnetic Waves. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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Physics / Electromagnetism
2017-2026
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2017-2026
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Last 10 Years Electromagnetic Waves Questions
Showing 15 of 15 filtered questions.
1Electromagnetic Waves
Match the following Maxwell's equations:(The symbols used here have their usual meanings)List-IList-II(a)Gauss' law for electrostatics(i)$\oint \vec{E} \cdot d\vec{A} = \dfrac{Q}{\varepsilon_0}$(b)Gauss' law for magnetism(ii)$\oint \vec{B} ...
MCQ+1 / -02026
2Electromagnetic Waves
What range of electromagnetic spectrum is considered as light?
MCQ+1 / -02026
3Electromagnetic Waves
The total energy carried by the light wave when it travels from a rarer to a non-reflecting and nonabsorbing medium
MCQ+1 / -02025
4Electromagnetic Waves
\(\text { Match the following types of waves with their wavelength ranges }\)
$$
\begin{array}{|l|l|}
\hline \text { Waves } & \text { Wavelength ranges } \\
\hline \text { i. Microwave } & \text { a. } 700 \mathrm{~nm} \text { to } 400 \...
$$
\begin{array}{|l|l|}
\hline \text { Waves } & \text { Wavelength ranges } \\
\hline \text { i. Microwave } & \text { a. } 700 \mathrm{~nm} \text { to } 400 \...
MCQ+1 / -02025
5Electromagnetic Waves
Electromagnetic waves are incident normally on a perfectly reflecting surface having surface area $A$. If $I$ is the intensity of the incident electromagnetic radiation and $c$ is the speed of light in vacuum, the force exerted by the elect...
MCQ+1 / -02024
6Electromagnetic Waves
The ratio of the magnitudes of electric field to the magnetic field of an electromagnetic wave is of the order of
MCQ+1 / -02023
7Electromagnetic Waves
Which of the following radiations of electromagnetic waves has the highest wavelength ?
MCQ+1 / -02022
8Electromagnetic Waves
The source of electromagnetic wave can be a charge
MCQ+1 / -02021
9Electromagnetic Waves
Suppose that the electric field amplitude of electromagnetic wave is \(E_0=120 \mathrm{~NC}^{-1}\) and its frequency \(f=50 \mathrm{~MHz}\). Then, which of the following value is incorrectly computed?
MCQ+1 / -02021
10Electromagnetic Waves
A light beam of intensity \(20 \mathrm{~W} / \mathrm{cm}^2\) is incident normally on a perfectly reflecting surface of sides \(25 \mathrm{~cm} \times 15 \mathrm{~cm}\). The momentum imparted to the surface by the light per second is
MCQ+1 / -02020
11Electromagnetic Waves
The phenomenon involved in the reflection of radio-waves by ionosphere is similar to
MCQ+1 / -02019
12Electromagnetic Waves
An electromagnetic wave is travelling in \(x\)-direction with electric field vector given by, \(\mathbf{E}_y=E_0 \sin (k x-\omega t) \hat{\mathbf{j}}\). The correct expression for magnetic field vector is
MCQ+1 / -02019
13Electromagnetic Waves
Due to Doppler's effect the shift in wavelength observed is \(0.1 \mathop A\limits^o\) for a star producing wavelength \(6000 \mathop A\limits^o\). Velocity of recession of the star will be
MCQ+1 / -02019
14Electromagnetic Waves
An antenna uses electromagnetic waves of frequency \(5 \mathrm{~MHz}\).
For proper working, the size of the antenna should be
For proper working, the size of the antenna should be
MCQ+1 / -02019
15Electromagnetic Waves
If $\mathbf{E}$ and $\mathbf{B}$ represent electric and magnetic field vectors of an electromagentic wave, the direction of propagation of the wave is along
MCQ+1 / -02017