Class 9 NCERT Science Sound (Physics)
It contains:
- Explanatory videos
- Detailed Study Material
- Concept Maps and Essential Points
- Comprehensive Question bank in different formats like: - MCQ
- Solved NCERT questions
- Exclusive Exemplar questions with solutions
- Fill ups
- True/False
- Match the following
- Comprehension
- Assertion & Reasoning
- Solved examples
- VSA (Very Short Answer)
- SA (Short Answer)
- LA (Long Answer)
- Production of Sound
- Sound needs a Medium to Travel
- Propagation of Sound
- Longitudinal Waves
- Formation of Longitudinal Waves in a Slinky
- Graphical Representation of Longitudinal Waves
- Characteristics of a Sound Wave
- Speed of Sound in Different Medium
- Reflection of Sound
- Echo
- Reverberation
- Infrasonics or Infrasound
- Ultrasonics or Ultrasound
- Properties of Ultrasound Waves
- Applications of Ultrasound (Ultrasonic Waves)
- SONAR (Sound Navigation and Ranging)
- Structure of Human Ear
Explanatory Videos Study Material Concept Maps and Essential Points Question Bank Chapter-wise HOTS Solved NCERT Questions Solved Exemplar questions Downloadable Unit test paper