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Question

The ratio of loudness of two sound waves, A and B is 3 : 4. If the amplitude of sound A is doubled and that of sound B is tripled, then the ratio of loudness of sound A and B becomes

दो ध्वनि तरंगों A तथा B की प्रबलता का अनुपात 3 : 4 है। यदि ध्वनि A के आयाम को दोगुना किया जाता है तथा ध्वनि B के आयाम को तिगुना किया जाता है, तब ध्वनि A तथा B की प्रबलता का अनुपात हो जाता है

A
3 : 1
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B
1 : 3
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C
16 : 27
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D
1 : 1
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