Waves questions
1337 published questions with worked solutions.
- Light with an average flux of 20 W/cm^2 falls on a non-reflecting surface at normal incidence having surface area 20 cm^2. The...
- The equation of a plane progressive wave is given by y = 5 (200t - x 150 ) where x and y are in cm and t is in second. The...
- A transverse wave on a string is described by y=3sin(36t+0.018x+π/4), where x,y are in cm and t in seconds. The least distance...
- In interference experiment the path difference between two interfering waves at a point A on the screen is λ/3, where λ is the...
- A closed organ pipe 150 cm long gives 7 beats per second with an open organ pipe of length 350 cm, both vibrating in fundamental...
- A plane electromagnetic wave propagating in x-direction is described by E_y = (200 Vm ^ -1 ) [1.5 10^7 t - 0.05x]; The intensity...
- In a closed organ pipe, the frequency of fundamental note is 30 Hz. A certain amount of water is now poured in the organ pipe so...
- The fundamental frequency of a closed organ pipe is equal to the first overtone frequency of an open organ pipe. If length of the...
- Two waves of intensity ratio 1 : 9 cross each other at a point. The resultant intensities at that point, when (a) Waves are...
- A closed organ pipe of length L and an open organ pipe contain gases of densities _1 and _2 respectively. The compressibility of...
- A sound wave of frequency 245 Hz travels with the speed of 300 ms ^ -1 along the positive x-axis. Each point of the wave moves to...
- A galaxy is moving away from the earth at a speed of 286 kms^ -1 . The shift in the wavelength of a red line at 630 nm is x 10^...
- With what speed should a galaxy move outward with respect to earth so that the sodium-D line at wavelength 5890 Å is observed at...
- The amplitude of wave disturbance propagating in the positive x-direction is given by y= 1 (1+x)^2 at time t = 0 and y= 1...
- The frequency of a car horn encountered a change from 400 Hz to 500 Hz. When the car approaches a vertical wall. If the speed of...
- Which of the following equations represents a travelling wave ?
- Two vibrating tuning forks produce progressive waves given by y_ 1 =4 500 t and y_ 2 =2 506 t. Number of beats produced per...
- Electric field in a plane electromagnetic wave is given by E=50 (500x-10 10^ 10 t)V/m The velocity of electromagnetic wave in...
- Two cars X and Y are approaching each other with velocities 36 km/h and 72 km/h respectively. The frequency of a whistle sound as...
- A tuning fork is vibrating at 250 Hz. The length of the shortest closed organ pipe that will resonate with the tuning fork will...
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