Тест - MECHANICAL OSCILLATIONS AND WAVES - Электронная библиотечная система "BookUp"

Вопрос 1 из 4. FORCED OSCILLATIONS OCCUR UNDER THE INFLUENCE OF

1. the elastic force

2. conservative forces

3. a restoring force

4. the periodic force

выберите один правильный вариант

1. if the vibrations are not damped

2. if the natural frequency coincides with the frequency of the driving force

3. if the same periods of vibration acting force and the oscillating body

4. when a large number of repetitions of vibrations

выберите один правильный вариант

1. in all directions

2. in the direction of wave propagation

3. perpendicular to the direction of wave propagation

4. perpendicular to the beam path

выберите один правильный вариант

1. the wave of oscillation points

2. during one complete oscillation wavelength points

3. the time of wave propagation in space

4. the propagation time of the waves between the two closest points

выберите один правильный вариант