Waves

A source of sound S emitting waves of frequency 100 Hz and an observer

A source of sound S emitting waves of frequency 100 Hz and an observer O are located at some distance…

The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second

The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second overtone of an…

The number of possible natural oscilations of air column in a pipe closed

The number of possible natural oscilations of air column in a pipe closed at one end of length 85 cm…

If n₁, n₂ and n₃ are the fundamental frequencies of three segments into which a string

If n₁, n₂ and n₃ are the fundamental frequencies of three segments into which a string is divided, then the…

A speeding motorcyclist sees traffic jam ahead him. He slows down to 36 km per hour

A speeding motorcyclist sees traffic jam ahead him. He slows down to 36 km hour⁻¹. He finds that traffic has…

Two tuning forks are sounded together and produce 2 beats per second.

Two tuning forks are sounded together and produce 2 beats per second. The frequency of one of them is 288…

When a sound wave of wavelength λ is propagating in a medium,

When a sound wave of wavelength λ is propagating in a medium, the maximum velocity of the particle is equal…

A car moving with a velocity of 36 km/hr crosses a siren of frequency 500 Hz.

A car moving with a velocity of 36 km/hr crosses a siren of frequency 500 Hz. The apparent frequency of…

Two points are located at a distance of 10 m and 15 m from the source of oscillation

Two points are located at a distance of 10 m and 15 m from the source of oscillation. The period…

The phase difference between two points seperated by 0.8 m in a wave of frequency

The phase difference between two points seperated by 0.8 m in a wave of frequency 120 Hz is 0.5 π.…