Chapter 15: Problem 2155
Unit of \(\mu_{0} \mathrm{C}\) is same as that of (A) current (B) resistance (C) electric charge (D) velocity
Chapter 15: Problem 2155
Unit of \(\mu_{0} \mathrm{C}\) is same as that of (A) current (B) resistance (C) electric charge (D) velocity
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Get started for freeRelation between amplitudes of electric and Magnetic field is (A) \(E_{0}=B_{0}\) (B) \(E_{0}=\mathrm{cB}_{0}\) (C) \(E_{0}=\left(B_{0} / c\right)\) (D) \(E_{0}=\left(\mathrm{c} / \mathrm{B}_{0}\right)\)
The velocity of light in vacuum can be changed by changing (A) frequency (B) wavelength (C) amplitude (D) none of these
What is the ratio of velocities of light rays of wavelengths $4000^{\circ} \mathrm{A}\( and \)8000^{\circ} \mathrm{A}$ in vacuum? (A) \(1: 2\) (B) \(1: 1\) (C) \(2: 1\) (D) cannot be determined
Unit of energy density of electromagnetic wave is (A) \(\mathrm{Jm}^{-3}\) (B) \(\mathrm{Jm}^{-2}\) (C) \(\mathrm{wm}^{-2}\) (D) None of these
The electric and magnetic field of an electromagnetic wave are (A) in phase and perpendicular to each other (B) in phase and parallel to each other (C) in opposite phase and perpendicular to each other (D) in opposite phase and parallel to each other
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