Superposition of Waves and Beats

Explain the concept of interference of waves.

• Interference of waves happens when waves travel in the same direction

• Interference of waves is the result of waves passing through different mediums

• Interference of waves occurs when two waves cancel each other out

• Interference of waves occurs when two or more waves overlap and combine to form a new wave pattern.

What is constructive interference and how does it occur?

• Constructive interference occurs when two waves of the same frequency and in phase with each other combine to form a wave with a smaller amplitude.

• Constructive interference occurs when two waves of the same frequency and in phase with each other combine to form a wave with a larger amplitude.

• Constructive interference occurs when two waves of different frequencies combine to form a wave with a larger amplitude.

• Constructive interference occurs when two waves are out of phase with each other and cancel each other out.

How is beat frequency calculated?

• By taking the difference between the frequencies of the two interfering waves.

• By adding the frequencies of the two interfering waves.

• By multiplying the frequencies of the two interfering waves.

• By dividing the frequencies of the two interfering waves.

What happens when two waves with the same frequency and amplitude interfere constructively?

• The wavelength of the resulting wave decreases.

• The frequency of the resulting wave changes.

• The amplitude of the resulting wave decreases.

• The amplitude of the resulting wave increases.

In what scenario do two waves cancel each other out due to destructive interference?

• Equal amplitudes and opposite phases

• Different wavelengths and same phases

• Different amplitudes and opposite phases

• Equal amplitudes and same phases

Discuss the practical applications of wave interference and beats in real-life situations.

• Wave interference and beats have no practical applications in real-life situations

• Wave interference and beats have practical applications in fields such as music, acoustics, telecommunications, and medical imaging.

• Wave interference and beats are only relevant in historical contexts

• Wave interference and beats are only used in fictional scenarios

What is the beat frequency of two waves with frequencies of 258 Hz and 262 Hz?

• 2Hz

• 4Hz

• 8Hz

• 260Hz

A Tuning fork ‘A’ produces 6 beats per second with another fork ‘B’. On loading ‘B’ with a little wax, it produces 5 beats  per second with ‘A’. If the frequency of ‘A’ is 256 Hz, the frequency of ‘B’ is:

• 262 Hz

• 250Hz

• 256Hz

• 270Hz