CLASS 9 -CLASS PHOTO BOYS 2019-20
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Link for Exploring Child's school Activities
To explore your child's school activities like Podar International School, (Your Location) Page. https://www.facebook.com/PIS4Vadodara
English class test link
file:///C:/Users/STAFFROOM/Desktop/Downloads/AS_CB_Eng_IX_Class%20Test%202.pdf https://drive.google.com/file/d/1PqPxK0Zr3v2ATGGBMr6wpIWxaSooaxME/view
Social Science Economics Answer Scheme of Chapter Food Security in India
Social Science Economics Answer Scheme of Chapter Food Security in India
Social Science Civics Answer Scheme of Chapter Democratic Rights
Social Science Civics Answer Scheme of Chapter Democratic Rights
science chapter note of 12.sound
Sound Sound is a form of energy which produces a sensation of hearing in our ears. Production of Sound Sound is produced due to the vibration of objects. Vibration is a periodic back-and-forth motion of the particles of an elastic body or mediumkind about a central position. It is also named as oscillation. For example: Stretched strings of a guitar vibrate to produce sound. When membrane of a table is struck, it vibrates to produce sound. Propagation of Sound The travelling of sound is called propagation of sound. Sound is propagated by the to and fro motion of particles of the medium. When an object vibrates, the particles around the medium vibrate. The particle in contact with the vibrating object is first displaced from its equilibrium position. Each particle disturbs the other particle in contact. Thus, the disturbance is carried from the source to the listener. Only the disturbance produced by the vibrating body travels through the medium but the part
