Q1. What does wave transfer-matter or energy? Ans. Energy Q2. What are mechanical waves? An...

Q1. Draw a graph for a wave representing wave disturbance and time for a sound changing from low pit...

Q1. Write three differences between transverse waves and longitudinal waves. Ans. Tr...

Q1. (a) What is meant by reflection of sound? (b) Describe an activity to study the reflection of s...