Teacher has displayed a noise level meter to control the noise level in the classroom . As the noise level increases beyond an acceptable level the noise level meterdynamically indicates the level of noise .
suggest any other innovative method to reduce level of noise in the absence of the teacher

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Solution

Noise means when two or more sound waves super impose each other i.e. more than one student speaks in high voice.
When only single student speaks with high noise than it is not considered as noise.

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Teacher has displayed a noise level meter to control the noise level in the classroom . As the noise level increases beyond an acceptable level the noise level meterdynamically indicates the level of noise .suggest any other innovative method to reduce level of noise in the absence of the teacher

Noise means when two or more sound waves super impose each other i.e. more than one student speaks in high voice. When only single student speaks with high noise than it is not considered as noise.

Teacher has displayed a noise level meter to control the noise level in the classroom . As the noise level increases beyond an acceptable level the noise level meterdynamically indicates the level of noise .
suggest any other innovative method to reduce level of noise in the absence of the teacher

Noise means when two or more sound waves super impose each other i.e. more than one student speaks in high voice.
When only single student speaks with high noise than it is not considered as noise.