Prokofiev VL - the solution of the entire version 10 in

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Task 3.10

The maximum current in the oscillating circuit is 0.1 A, and the maximum voltage on the plates

Condenser 200 V. Find the cyclic frequency of the oscillations if the energy of the circuit is 0.2 mJ.

PROBLEM 3.20

Find the velocity of sound propagation in a diatomic gas if it is known that the density of this gas at

Pressure of 105 Pa is equal to 1.29 kg / m3.

Task 3.30

In the installation for observing Newton's rings, the space between the lens and the glass plate

Filled with liquid. Determine the refractive index of the liquid, if the diameter of the second light

The ring in reflected light is 5 mm. Light with a wavelength of 0.615 m falls normally. Radius of curvature

Lens 9 m.

Task 3.40

The distance between the atomic planes of the calcite crystal is 0.3 nm. Determine for which

The X-ray wavelength, the second diffraction maximum will be observed upon reflection

Rays at an angle of 45 ° to the surface of the crystal.

Task 3.50

A sugar solution with a concentration of 0.25 g / cm3, 18 cm thick, rotates the plane of polarization

Monochromatic light at an angle of 30 °. Another solution 16 cm thick turns the plane

Polarization of this same light by an angle of 24 °. Determine the concentration of sugar in the second solution.

Task 3.60

Find the coefficient of linear absorption if the intensity of the monochromatic light of the past

Through the words of a substance 30 cm thick decreased four times.

Task 3.70

The pressure of light normally incident on the surface is 2 μPa. Determine the concentration of photons

Near the surface, if the wavelength of light is 0.45 μm, and the reflection coefficient is 0.5.

Task 3.80

Originally, a resting free electron as a result of Compton scattering of gamma-

Photon with an energy of 0.51 MeV acquired kinetic energy of 0.06 MeV. What is the scattering angle

Photon?