Decibel is unit of
  • A
    Intensity of light
  • B$X-rays$ radiation capacity
  • C
    Sound loudness
  • D
    Energy of radiation
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
    A cylindrical tube, open at both ends, has a fundamental frequency ${f_0}$ in air. The tube is dipped vertically into water such that half of its length is inside water. The fundamental frequency of the air column now is
    View Solution
  • 2
    Sound travels in rocks in the form of
    View Solution
  • 3
    The velocity of sound is $v_s$ in air. If the density of air is increased to $4$ times, then the new velocity of sound will be
    View Solution
  • 4
    An underwater sonar source operating at a frequency of $60 KHz$ directs its beam towards the surface. If the velocity of sound in air is $330\, m/s,$ the wavelength and frequency of waves in air are:
    View Solution
  • 5
    A second harmonic has to be generated in a string of length $l$ stretched between two rigid supports. The points where the string has to be plucked and touched are respectively
    View Solution
  • 6
    The equation of a stationary wave along a stretched string is given by $y = 5\,sin\, \frac{2\pi }{3}x\, cos\, 40\pi t$ where $x$ and $y$ are in $cm$ and $t$ is in $s$. The separation between two adjacent nodes is ..... $cm$
    View Solution
  • 7
    Equation of a progressive wave is given by $y = a\,\sin \pi \,\left[ {\frac{t}{2} - \frac{x}{4}} \right]\,,$ where $t$ is in seconds and $x$ is in meters. The distance through which the wave moves in $8 sec$ is .... $(m)$ (in meter)
    View Solution
  • 8
    An organ pipe $P_1$ closed at one end vibrating in its first overtone. Another pipe $P_2$ open at both ends is vibrating in its third overtone. They are in a resonance with a given tuning fork. The ratio of the length of $P_1$ to that of $P_2$ is :
    View Solution
  • 9
    The phase difference between the two particles situated on both the sides of a node is ... $^o$
    View Solution
  • 10
    A wave represented by the given equation $y = a\cos (kx - \omega \,t)$ is superposed with another wave to form a stationary wave such that the point $x = 0$ is a node. The equation for the other wave is
    View Solution