NEET UG PHYSICS MCQ: ELECTROMAGNETIC WAVES

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Understanding +4 | -1

An electromagnetic wave of intensity

I

falls on a surface kept in vacuum and exerts radiation pressure

P

on it. Which of the following statement is not true?

View answer and explanation

Correct option: B

Radiation pressure is

I / C

if the wave is totally reflected.

Option B (Radiation pressure is

I / C

if the wave is totally reflected.) is not true because the radiation pressure is

2I/c

when the wave is totally reflected.

More Questions from ELECTROMAGNETIC WAVES

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{E_X}

{E_R}

{E_M}

60\,\,\frac{V}{m}

{E_1} = {E_{01}}\hat x\cos \left[ {2\pi v\left( {\frac{z}{c} - t} \right)} \right]

{E_2} = {E_{02}}\hat x\cos \left[ {k\left( {2z - ct} \right)} \right]

{\varepsilon _{{r_1}}}

{\varepsilon _{{r_2}}}

E = 50\sin \,(500x - 10 \times {10^{10}}t)\,v/m.

c

\mathrm{\varepsilon }

\mathrm{\mu }

\sqrt {\frac{\mathrm{\mu }}{\mathrm{\varepsilon }}}