Reflection of sound wave: Like light, sound can also be made to change its direction and bounce back when it falls on a hard surface. The bouncing back of sound when it strikes a hard surface is known as reflection of sound. The reflection of sound does not require a smooth and shining surface like that of mirror, it can be reflected from any surface whether it is smooth or rough. Sound is reflected in the same way as light and follows the same laws of reflection, which are as follows:
1. The incident sound wave (AO), the reflected sound wave (OB) and the normal (ON) at the point of incidence, all lie in the same plane.
2. The angle of incidence (<AON) of sound is equal to the angle of reflection (<NOB) of sound.
Application of reflection of sound:
A sound wave makes an angle with the normal to the reflecting surface. The angle of reflection is _______ . | |||
Right Option : B | |||
View Explanation |
Which one of the following materials will not reflect sound better ? | |||
Right Option : A | |||
View Explanation |
Which one of the following material will reflect sound better ? | |||
Right Option : C | |||
View Explanation |
It was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
My experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
I have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Being a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
It has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
A marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
My experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
One of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Abhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
About Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.