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JEE Advanced Previous Year Questions (2018 - 2023): Electromagnetic Waves | Physics for JEE Main & Advanced PDF Download

2023

Q1: The electric field associated with an electromagnetic wave propagating in a dielectric medium is given by JEE Advanced Previous Year Questions (2018 - 2023): Electromagnetic Waves | Physics for JEE Main & Advanced. Which of the following option(s) is(are) correct?
[Given: The speed of light in vacuum,  c = 3 × 108 m s−1 ] 
(a) JEE Advanced Previous Year Questions (2018 - 2023): Electromagnetic Waves | Physics for JEE Main & Advanced
(b) JEE Advanced Previous Year Questions (2018 - 2023): Electromagnetic Waves | Physics for JEE Main & Advanced
(c) The wave is polarized in the xy-plane with polarization angle 30 with respect to the x-axis.
(d) The refractive index of the medium is 2.             [JEE Advanced 2023 Paper 2]
Ans:
(a) & (d)
1. Calculation of the Speed of Light in a Medium:
- The speed of light in a medium, denoted as V, is given by the formula V = W/k.
- Substituting values, we get  JEE Advanced Previous Year Questions (2018 - 2023): Electromagnetic Waves | Physics for JEE Main & Advanced

2. Determination of the Refractive Index:
- The refractive index, μ, is the ratio of the speed of light in vacuum, C, to the speed of light in the medium, V.
- Substituting values,  JEE Advanced Previous Year Questions (2018 - 2023): Electromagnetic Waves | Physics for JEE Main & Advanced
- Hence, the refractive index μ is 2.
Therefore, the option (D) is the answer.
Given, JEE Advanced Previous Year Questions (2018 - 2023): Electromagnetic Waves | Physics for JEE Main & Advanced
Now magnitude of

JEE Advanced Previous Year Questions (2018 - 2023): Electromagnetic Waves | Physics for JEE Main & Advanced

JEE Advanced Previous Year Questions (2018 - 2023): Electromagnetic Waves | Physics for JEE Main & Advanced

JEE Advanced Previous Year Questions (2018 - 2023): Electromagnetic Waves | Physics for JEE Main & Advanced

The direction of JEE Advanced Previous Year Questions (2018 - 2023): Electromagnetic Waves | Physics for JEE Main & Advanced is along the direction of JEE Advanced Previous Year Questions (2018 - 2023): Electromagnetic Waves | Physics for JEE Main & Advanced

JEE Advanced Previous Year Questions (2018 - 2023): Electromagnetic Waves | Physics for JEE Main & Advanced

Therefore, option (A) is the answer.

The document JEE Advanced Previous Year Questions (2018 - 2023): Electromagnetic Waves | Physics for JEE Main & Advanced is a part of the JEE Course Physics for JEE Main & Advanced.
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