JEE PHYSICS MCQ: WAVES

1 Medium

1 of 1

Understanding +4 | -1

A travelling wave is partly reflected and partly transmitted from a rigid boundary. Let

a_i, a_r

and

a_t

be the amplitudes of incident wave, reflected wave and transmitted wave and

I_i, I_r

and

I_t

be the corresponding intensities. Then, choose the correct alternative

View answer and explanation

Correct option: A

\frac{I_i}{I_r}=\left(\frac{a_i}{a_r}\right)^2

Option A is correct because the ratio of intensities is the square of the ratio of amplitudes when the medium is the same for both waves.

More Questions from WAVES

Practice All Chapter MCQs →

3\,\,kHz

0.5

f\mathrm{ }Hz

V\mathrm{ }m/sec

0.2\,\,V

y = \frac{3}{{{{\left( {2x + 3t} \right)}^2} + 4}},

(– \mathrm{ve}) \,x

y = f(kx +\omega t),

X

0.01\,\,s

5 \mathrm{~m}

245 \mathrm{~g}

1 \mathrm{~kg}

g=980 \mathrm{~cm} \mathrm{~s}^{-2}

T

V