Nithya asks:
- “A source of sound frequency 256Hz is moving rapidly towards a wall with a velocity of 5m/s. How many beats per second will be heard if sound travels at a speed of 330m/s?”
- a
Free Help in Physics
Nithya asks:
Hello Dear Students, If you were searching for a set of questions which you cannot afford to leave while preparing for AISSCE 2011 Physics Exam, Here it is. Please practice them carefully. If you have
One mark questions
Iqbal Lucky asked
“when a wave enters from air to water, its wavelength changes but
frequency remains unchanged. why”
Answer
Velocity of a wave = frequency x time period
V = ν λ
When a wave
Oscillations and Waves is considered as the most difficult chapters by most of the students. In many schools, these chapters are not properly discussed