Recent questions in 11th Physics

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Two waves have equations:- `X_1=a Sin(wt+phi_1)' 'X_2=a Sin(wt+phi_2)`X If in the resultant wave, the amplitude remains equal to the amplitude of the super posing waves. Calculate the phase difference between X1 and

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A Tuning fork of frequency 300HZ resonates with an air column closed at one end at `27^oC`. How many beats will be heard in the vibration of the fork and the air column at `0^oC`

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A vehicle with horn of frequency ‘n’ is moving with a velocity of `30m|s` in a direction perpendicular to the straight line joining the observer and the vehicle. If the observer perceives the sound to have a frequency of `n+n_1`. Calculate

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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We cannot hear echo in a room.

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Show that the frequency of nth harmonic mode in a vibrating string which is closed at both the end is ‘n’ times the frequency of the first harmonic

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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If the displacement of two waves at a point is given by:-`Y_1=a sin wt``Y_2=a sin (wt+pi/2)`Calculate the resultant

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Why do the stages of large auditoriums gave curved

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Show that Doppler effect in sound is

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An organ pipe P1 closed at one end vibrating in its first overtone and another pipe P2 open at both the ends vibrating in its third overtone are in resonance with a given tuning fork. Find the ratio of length of P1 and

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A simple Romanic wave has the equation`Y = 0.30 Sin (314 t – 1.57x)`t = sec, x = meters, y = cm. Find the frequency and wavelength of this wave.Another wave has the equation`Y1 = 0.1 Sin (314 t – 1.57x + 1.57)`Deduce the phase difference and ratio of intensities of the above two

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Two parts of a Sonometer wire divided by a movable knife differ by 2 mm and produce one beat per record when sounded together. Find their frequencies if the whole length of the wire is 1

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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The component waves producing a stationary wave have amplitude, Frequency and velocity of 8 cm, 30HZ and 180 cm/s respected. Write the equation of the stationary

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A wine of density a g/`cm^3` is stretched between two clamps 1 m apart while subjected to an extension of 0.05 cm. What is the lowest frequency of transverse vibration in the wire? Let young’s Modulus = `y = 9 xx10^(10)N`/`m^2`

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Differentiate between the types of vibration in closed and open organ

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Under what condition is the relation `s =υt`

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Two balls of different masses are thrown vertically upward with same initial speed. Which one will rise to a greater

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What is the relative velocity of two bodies having equal

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Write the characteristics of

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Draw displacement time graph for uniformly accelerated motion. What is its

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Sameer went on his bike from Delhi to Gurgaon at a speed of 60km/hr and cameback at a speed of 40km/hr. what is his average speed for entire

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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