Top-Coaching-Tuition-Class-In-Noida May 13

Solar Energy and its different uses

Solar Energy and its different uses Solar energy is the energy of Sun. The earth receives a huge amount of energy from the sun. Traditionally We have been solar energy for drying clothes and grains, make salt from sea water. Solar cooker So lar cooker is a device which is used to cook food by […]

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Top-Coaching-Tuition-Class-In-Noida May 12

Sound | Do you know, What is Echo & Reverberation?

Sound | Do you know, What is Echo & Reverberation? ECHO The repetition of sound caused by the reflection of sound waves is called an echo. An echo is heard when sound is reflected from a hard surface such as a tall brick wall or a cliff. A soft surface tends to absorb sound, so […]

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