Chapter 15: Problem 2164
The electromagnetic waves do not transport (A) energy (B) charge (C) momentum (D) information
Chapter 15: Problem 2164
The electromagnetic waves do not transport (A) energy (B) charge (C) momentum (D) information
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Get started for freeIf the wavelength of light is \(4000^{\circ} \mathrm{A}\) then the number of waves in \(1 \mathrm{~mm}\) length will be (A) \(2.5\) (B) 2500 (C) 250 (D) 25000
An electromagnetic wave (A) can be deflected by electric field (B) can be deflected by magnetic field (C) can be deflected by both electric and magnetic field (D) none of these
A plane electromagnetic wave is incident on a mater1al surface. The wave delivers momentum \(P\) and energy \(E\) (A) \(\mathrm{P}=0, \mathrm{E} \neq 0\) (B) \(\mathrm{P} \neq 0, \mathrm{E}=0\) (C) \(P \neq 0, E \neq 0\) (D) \(P=0, E=0\)
A plane electromagnetic wave of frequency \(25 \mathrm{MHz}\) travels in free space along the \(\mathrm{x}\) direction. At a particular point in space and time \(\mathrm{E}^{-}=6.3 \mathrm{j} \wedge \mathrm{Vm}^{-1}\) then \(\mathrm{B}^{-}\) at this point is (A) \(2.1 \times 10^{-8}\) i \(\mathrm{T}\) (B) \(2.1 \times 10^{-8} \mathrm{k} \wedge \mathrm{T}\) (C) \(1.89 \times 10^{9} \mathrm{k} \wedge \mathrm{T}\) (D) \(2.52 \times 10^{-7} \mathrm{k} \wedge \mathrm{T}\)
SI unit of displacement current is (A) coulomb (B) ampere (C) faraday (D) volt
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