MHT-CET

26. Electromagnetic Waves question bank (Physics)

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Q1.

The frequency of radio waves corresponding to a wavelength of $10 \, m$ is

(A)

$3 \times 10^{7} \, Hz$

(B)

$3.3 \times 10^{8} \, Hz$

(C)

$3 \times 10^{9} \, Hz$

(D)

$3 \times 10^{-7} \, Hz$

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Q2.

The voltage between the plates of a parallel plate capacitor of capacity $1 \ \mu F$ is changing at the rate of $4 \ V/s$. The displacement current in the capacitor is: (in $\mu A$)

(A)

$4$

(B)

$3$

(C)

$1$

(D)

$6$

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