A pendulum with a wooden rod and steel disc blade swings in small oscillations and at the same time the whole system moves down. To determine number of oscillations of the pendulum when it has moved down by 1m.

A torture technique used by inquisition included a pendulum with attached blade. The length and mass of the wooden rod are L=5m and M=10kg, and the steel disk blade has m=30kg and radius R=30cm. While the pendulum swings, the whole system moves vertically down at a rate of 1mm/min. Considering that the pendulum has a small amp ...continues

Problem 1 - To determine the capacitance and dielectric breakdown potential of a cylindrical capacitor; Problem 2 - Three capacitors in series. To determine equivalent capacitance, charge, potential difference and energy stored; Problem 3 - A bar like sample of a new metallic compound. To determine its resistivity.

Problem 1 - To determine the capacitance and dielectric breakdown potential of a cylindrical capacitor; Problem 2 - Three capacitors in series. To determine equivalent capacitance, charge, potential difference and energy stored; Problem 3 - A bar like sample of a new metallic compound. To determine its resistivity. See attach ...continues

Wave Optics: Interference in thin films/wedge shaped film.

Two rectangular optically flat plates (n=1.52) are in contact along one end and are separated along the other end by a 2.00 micrometer thick spacer. The top plate is illuminated by monochromatic light of wavelength 546.1 nm. Calculate the number of dark parallel bands crossing the top plate (including the dark band at zero thick ...continues

Optics:

A.) If light is incident at an angle (theta) from a medium of index n1 on a medium of index n2 so that the angle between the reflected ray and refracted ray is (Beta), show that: tan (theta) = n2 sin (Beta) / n1 - n2 cos (Beta) {Use the identity: sin(A + B) = sin A cos B + cos A sin B} B.) Show that the foregoing equati ...continues

Wave length/frequency/speed of sound & EM waves

(See attached file for full problem description) --- 20.25 Part A : At 20 degree C, what is the frequency of a sound wave in air with a wavelength of 17.0 cm ? Part B : What is the frequency of an electromagnetic wave with a wavelength of 17.0 cm ? Part C : What would be the wavelength of a sound wave in water t ...continues

Doppler effect of sound

(See attached file for full problem description) --- 20.36 An opera singer in a convertible sings a note at 600 Hz while cruising down the highway at 90 km/hr. Part A : What is the frequency heard by a person standing beside the road in front of the car? Part B : What is the frequency heard by a person on the gro ...continues

Standing waves on string

(See attached file for full problem description and figures) --- Nodes of standing waves: The nodes of a standing wave are points at which the displacement of the wave is zero at all times. Nodes are important for matching boundary conditions, for example, that the point at which a string is tied to a support has zero displ ...continues

Standing Waves

(See attached file for full problem description and figures) --- 21.8 The figure shows a standing wave oscillating at 100 Hz on a string. Part A : What is the wave speed? 21.5 A 40-cm-long tube has a 40-cm-long insert that can be pulled in and out. A vibrating tuning fork is held next to the tube. As the ins ...continues

Waves, Nature of Light, Polarization, Interference

(See attached file for full problem description)

Polarized light entering polarization filter.

See attached file.