Electromagnetic Waves

Bihar Board Class 12 · Physics · 19 past questions

1. Q1 2026 Set A

   The dimensions of $\dfrac{B_0^2}{\mu_0}$ will be the same as that of

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2. Q2 2026 Set A

   Who first explained electromagnetic waves mathematically ?

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3. Q3 2026 Set A

   Remote control for televisions uses

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4. Q4 2025 Set D

   Unit of $\sqrt{\dfrac{\mu_0}{\varepsilon_0}}$ is

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5. Q5 2025 Set D

   Which of the following is not an electromagnetic wave?

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6. Q6 2025 Set D

   The speed of electromagnetic wave in any material medium does not depend

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7. Q7 2024 Set A

   The value of $(\mu_0 \epsilon_0)^{-1/2}$ is

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8. Q8 2023 Set F

   In visible spectrum, which colour has larger wavelength ?

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9. Q9 2023 Set F

   Which one of the following electromagnetic radiations has minimum wavelength ?

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10. Q10 2023 Set F

    The phase difference between electric wave and magnetic wave in the electromagnetic wave is

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11. Q11 2023 Set F

    X-rays are

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12. Q12 2022 Set I

    Which of the following is correct for speed of electromagnetic wave in vacuum?

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13. Q13 2022 Set I

    Nature of electromagnetic waves is

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14. Q14 2021 Set A2019

    The direction of propagation of electromagnetic wave is

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15. Q15 2019

    Write down two properties of electromagnetic wave.

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16. Q16 2018

    The dimensional formula for $\dfrac{1}{2}\varepsilon_0E^2$ is identical to that of…

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17. Q17 2018

    The energy of an electromagnetic radiation is 13.2keV. This radiation is related to which region of spectrum ?

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18. Q18 2017

    The direction of transmission of electromagnetic wave is-

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19. Q19 2017

    The unit of ratio of magnetic field B and electrical field E (B/E) is-

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