Question Answers
Sahay Sir > Question Answers
A point source emits sound equally in all directions in a non absorbing medium. Two points P and Q are at distances of 2m and 3 m respectively from the source. The ratio of the amplitudes of the waves at P and Q is?
31
Aug
A point source emits sound equally in all directions in a non absorbing medium. Two points P and Q are at distances of 2m and 3 m respectively from the source. The ratio of the amplitudes of the waves at P and Q is? is a wave travelling along the: The wave described by y [...]
The time of reverberation of a room A is 1s. What will be the time (in second) of reverberation of a room, having all the dimensions double of those of room A
31
Aug
The time of reverberation of a room A is 1s. What will be the time (in second) of reverberation of a room, having all the dimensions double of those of room A having all the dimensions double of those of room A The time of reverberation of a room A is 1s. What will be [...]
The electric field in a cubical volume is E→=E0(1+za)iˆ+E0(za)jˆ Each edge of the cube measures d, and one of the corners lies at the origin of the coordinates. Determine the net charge within the cube
31
Aug
The electric field in a cubical volume is E→=E0(1+za)iˆ+E0(za)jˆ Each edge of the cube measures d, and one of the corners lies at the origin of the coordinates. Determine the net charge within the cube and one of the corners lies at the origin of the coordinates. Determine the net charge within the cube The [...]
Which one of the following statements is true ?
31
Aug
Which one of the following statements is true ? Which one of the following statements is true ? August 31, 2020 Category: Chapter 16 - Waves , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics ,
The bob of a pendulum at rest is given a sharp hit to impart a horizontal velocity root10 gl , where l is the length of the pendulum. Find the tension in the string when (a) the string is horizontal, (b) the bob is at its highest point and (c) the string makes an angle of 60 with the upward vertical.
31
Aug
The bob of a pendulum at rest is given a sharp hit to impart a horizontal velocity root10 gl , where l is the length of the pendulum. Find the tension in the string when (a) the string is horizontal, (b) the bob is at its highest point and (c) the string makes an angle [...]
Tags:
(b) the bob is at its highest point and (c) the string makes an angle of 60 with the upward vertical. ,
The bob of a pendulum at rest is given a sharp hit to impart a horizontal velocity root10 gl ,
where l is the length of the pendulum. Find the tension in the string when (a) the string is horizontal ,
Two waves are represented by the equations y1 = a sin (omega t + kx + 0.57)m and y2 = a cos (omega t + kx) m where x is in metre and t in second. The phase difference between them is
31
Aug
Two waves are represented by the equations y1 = a sin (omega t + kx + 0.57)m and y2 = a cos (omega t + kx) m where x is in metre and t in second. The phase difference between them is Two waves are represented by the equations y1 = a sin (omega t [...]
A uniform rope of length L and mass m1 hangs vertically from a rigid support. A block of mass m2 is attached to the free end of the rope. A transverse pulse of wavelength lamda 1 is produced at the lower end of the rope. The wavelength of the pulse when it reaches the top of the rope is lamda 2. The ratio (lamda 2)/(lamda 1) is
31
Aug
A uniform rope of length L and mass m1 hangs vertically from a rigid support. A block of mass m2 is attached to the free end of the rope. A transverse pulse of wavelength lamda 1 is produced at the lower end of the rope. The wavelength of the pulse when it reaches the top [...]
A cube of edge l is placed in uniform electric field as shown in fig.(a), if the cube is rotated by angle theta with vertical as shown in fig (b). calculate the flux of electric field entering the cube.
31
Aug
A cube of edge l is placed in uniform electric field as shown in fig.(a), if the cube is rotated by angle theta with vertical as shown in fig (b). calculate the flux of electric field entering the cube. A cube of edge l is placed in uniform electric field as shown in fig.(a) if [...]
A particle tide to the end of a string oscillates along a circular arc in a vertical plane. The other end of the string is fixed at the center of the circle. If the string has a breaking strength of twice the weight of the particles, a. find the maximum distance that the particle can cover in one cycle of oscillation. The length of the string is 50cm. b. Find the tension in the extreme position. c. Find the acceleration of the particle at bottom and extreme position.
31
Aug
A particle tide to the end of a string oscillates along a circular arc in a vertical plane. The other end of the string is fixed at the center of the circle. If the string has a breaking strength of twice the weight of the particles, a. find the maximum distance that the particle can [...]
Two periodic waves of intensities I1 and I2 pass through a region at the same time in the same direction. The sum of the maximum and minimum intensities is
31
Aug
Two periodic waves of intensities I1 and I2 pass through a region at the same time in the same direction. The sum of the maximum and minimum intensities is Two periodic waves of intensities I1 and I2 pass through a region at the same time in the same direction. The sum of the maximum and [...]