1
KCET 2025
MCQ (Single Correct Answer)
+1
-0

The total energy carried by the light wave when it travels from a rarer to a non-reflecting and nonabsorbing medium

A
remains same
B
increases
C
either increases or decreases depending upon angle of incidence
D
decreases
2
KCET 2024
MCQ (Single Correct Answer)
+1
-0

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 electromagnetic wave on the reflecting surface is

A
$2 I A / c$
B
$L A / C$
C
$I A / 2 c$
D
$I / 2 A c$
3
KCET 2023
MCQ (Single Correct Answer)
+1
-0

The ratio of the magnitudes of electric field to the magnetic field of an electromagnetic wave is of the order of

A
10$$^{-8}$$ ms$$^{-1}$$
B
10$$^{5}$$ ms$$^{-1}$$
C
10$$^{-5}$$ ms$$^{-1}$$
D
10$$^{8}$$ ms$$^{-1}$$
4
KCET 2022
MCQ (Single Correct Answer)
+1
-0

Which of the following radiations of electromagnetic waves has the highest wavelength ?

A
UV-rays
B
IR-rays
C
Microwaves
D
X-rays
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