Final answer:
When a wave's temperature decreases, its frequency remains constant, and when a wave moves from a liquid to a gas medium, its frequency is not affected. The wavelength of Wave A increases when the speed of sound decreases, and the wavelength of Wave B decreases when the speed of sound increases. The energy of both waves is not affected by the temperature or medium changes. Wave A's speed decreases when the speed of sound decreases, and Wave B's speed increases when the speed of sound increases.
Step-by-step explanation:
Both waves, A and B, have different properties when their temperature and medium change.
Wave A: When a wave's temperature decreases, its frequency remains constant. Therefore, option a) is incorrect. The wavelength of Wave A may change depending on the medium it is traveling in. If Wave A is traveling in a medium where the speed of sound decreases, such as in colder air, then its wavelength increases. Hence, option b) is correct. The energy of Wave A is not affected by changes in temperature or medium, so option c) is incorrect. Furthermore, the speed of Wave A is determined by the characteristics of the medium it is traveling in, such as temperature and density. If Wave A is traveling in a medium where the speed of sound decreases, then its speed also decreases. Therefore, option d) is correct.
Wave B: When a wave moves from a liquid to a gas medium, the frequency of the wave is not affected. Therefore, option a) is incorrect. The wavelength of Wave B may change depending on the medium it is traveling in. If Wave B is traveling from a liquid to a gas, where the speed of sound increases, then its wavelength decreases. Hence, option b) is correct. The energy of Wave B is not affected by changes in the medium, so option c) is incorrect. Additionally, the speed of Wave B is determined by the properties of the medium it is traveling in. If Wave B is moving from a liquid to a gas, where the speed of sound increases, then its speed also increases. Therefore, option d) is correct.