A smoked plate falls vertically under gravity and a tuning fork traaces waves on it. It was found from the trace that there 10 waves are spaced over 4.2 cm. Calculate the frequecny of the tuming fork.

A smoked plate falls vertically under gravity. A tuning fork traces wave on it. It is found that the lengths of two conscutive grounps of 10 waves are 5.143 and 6.64 cm respectively. What is the frequecny of the fork ?

A pointer attached to a vibrating fork presses a smoked cylinder lightly. The cylinder is suddenly rotated through one complete revolution in 0.75 seconds. The pointer traces 192 waves on the cylinder. Calculate the frequency of the tuning fork.

A light pointer fixed to one prong of a tuning fork touches gnetly a smoked vertical plate. The fork is set vibrating and the plate is allowed to fall freely. 8 complete oscilllations are counted when the plate falls through 10cm.What is the frequency of the tuning fork?

A tuning fork is found to give 20 beats "in" 12 s when sounded in conjuction with a stretched string vibrating under a tension of 10.2 or 9.9 kgf . Calculate the frequency of the fork.

A metal ball ofradius 10^(-4) m and density 10^4 kg//m^3 falls freely under gravity through a distance 'h' and enters a tank of water. It is found that after entering the water, the velocity of ball does not change. What is the value of h? [eta "for water "10^(-5)" Pas ",g=10m//s^2" and "orh_("water")=10^3kg//m^3 ]

A light pointer fixed to one prong of a tuning fork touches gently a smoked vertical plate. The fork is set vibrating and the plate is allowed to fall freely. Two complete oscillations are traced when the plate falls through 40cm. What is the frequency ( in Hz ) of the tuning fork ?

A sonometer wire under tension of 64 N uibrating in its fundamental mode is in resonance with a uibrating tuning fork . The uibrating portion of the sonemether wire has a length of 10 cm and mass of 1 g . The uibrating tuning fork is now moved away from the uibrating wire with a constant speed and an observer standing near the sonometer hears one beat per second . Calculate the speed with which the tuning fork is moved , if speed of sound in air is 300 m//s .

A sonometer wire under tension of 63 N vibrating in its fundamental mode is in resonance with a vibrating tuning fork. The vibrating portion of that sonometer wire has a length of 10 cm and a mass of 1 g. The vibrating tuning fork isnow moved away from the vibrating wire with a constant speed and an observer standing near the sonometer hears one beat per second. Calculate the speed with which the tuning fork is moved if the pseed of sound in air is 300 m/s.

A sonometer wire under tension of 64 N vibrating in its fundamental mode is in resonance with a vibrating tuning fork. The vibrating portion of the sonometer wire has a length of 10 cm and mass of 1 kg. The vibrating tuning fork is now moved away from the vibrating wire with a constant speed and an observer standing near the sonometer hears one beat per second. Calculate the speed with which the tuning fork is moved, if the speed of sound in air is 300 m/s.