$‘SONAR’$ emits which of the following waves
  • A
    Radio waves
  • B
    Ultrasonic waves
  • C
    Light waves
  • D
    Magnetic waves
AIIMS 1999, Easy
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    The sound carried by air from a sitar to a listener is a wave of the following type
    View Solution
  • 2
    Two monoatomic ideal gases $1$ and $2$ of molecular masses $m_1$ and $m_2$ respectively are enclosed in separate containers kept at the same temperature. The ratio of the speed of sound in gas $1$ to that in gas $2$ is given by
    View Solution
  • 3
    A wave is represented by $x=4 \cos \left(8 t-\frac{y}{2}\right)$, where $x$ and $y$ are in metre and $t$ in second. The frequency of the wave $\left(\right.$ in $^{-1}$ ) is .........
    View Solution
  • 4
     In a standing wave on a string rigidly fixed at both ends
    View Solution
  • 5
    Beats are produced by two waves ${y_1} = a\sin 1000\,\pi t,$ ${y_2} = a\sin 998\pi t$The number of beats heard/sec is
    View Solution
  • 6
    A micro-wave and an ultrasonic sound wave have the same wavelength. Their frequencies are in the ratio (approximately)
    View Solution
  • 7
    The ratio of intensities between two coherent soud sources is $4 : 1$. The differenmce of loudness in $dB$ between maximum and minimum intensities when they interfere in space is:
    View Solution
  • 8
    A string is stretched between fixed points separated by $75.0\,\, cm.$ It is observed to have resonant frequencies of $420\,\, Hz$ and $315\,\, Hz$. There are no other resonant frequencies between these two. The lowest resonant frequency for this string is .... $Hz$
    View Solution
  • 9
    Two generators $S_1$ and $S_2$ produce water wave of equal frequency. A point $P$ is located such that $(S_1P -S_2P)$ is equal to half a wavelength. When operated alone, $S_1$ produces an oscillation of amplitude $2a$ at $P$ while $S_2$ produces an oscillation of amplitude $a$ . If the generators are operated in phase, which graph correctly shows the resultant oscillation at $P$ ?
    View Solution
  • 10
    The equation of a wave is represented by $y = {10^{ - 4}}\sin \,\left[ {100\,t - \frac{x}{{10}}} \right].$ The velocity of the wave will be .... $m/s$
    View Solution