Examples of reflection. Plane wave, plane surface. The phase of the reflected sound waves from hard surfaces and the reflection of string waves from their ends determines whether the interference of the reflected and incident waves will be constructive or destructive.
The tendency to develop allergies is often hereditary, which means it can be passed down through genes from parents to their kids. But just because you, your partner, or one of your children might have allergies doesn't mean that all of your kids will definitely get them, too.
Asthma & Allergies. Many people with asthma also have allergies, and your doctor may refer you to an allergist if you are experiencing asthma symptoms. However, just as not everyone who has allergies develops asthma, not everyone who has asthma has allergies.Researchers are still trying to determine the exact relationship between the two.any people with asthma also have allergies, and your doctor may refer you to an allergist if you are experiencing asthma symptoms. However, just as not everyone who has allergies develops asthma, not everyone who has asthma has allergies. Researchers are still trying to determine the exact relationship between the two.