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Acoustic Class 10 Science Unit 5

Sound Waves & its categories

Velocity of sound waves

Example Problem 5.1

Reflection of sound

ECHOES & Its Applications

Doppler effect

Solved problems 1 to 5

Conditions for no Doppler effect & Applications of Doppler effect

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Best Comments


KÑØÇKØÜT TÊÇH

Sir I'm one of your proud student I have seen all your videos in class 12 playlist And now I'm happy to say that I have scored 84/100 in maths only because of you sir Thank you very much sir. Many of my younger friends and relatives are started seeing your videos as I recommended them. Once again thank you very much sir.
BANUMATHI MATHI

Now I am studying currently 12std sir without u I am nothing in maths, chemistry and physics sir hats off u sir

Jaswanth Raaghav

Tq sir❤❤ veliya cash pay panni sollitharanga apo kooda unga alavuku yarum eduka matinguranga u are such a awesome teacher sir U AR SUCH A SERVICEMAN sir❤❤

Vel Mayil

Sir ,நான் ஒரு அரசுப்பள்ளி மாணவி . இந்த lockdown நேரத்தில் உங்கள் teaching பயனாக உள்ளது .thankyou sir

Shoban Kumar

”Sir, thank you so much sir... Without your online classes I wouldn't have scored 93/100. I got only 81 in 11th. But I came to know about your online classes only when my friend said to me. It was totally because of you I got this mark sir!!! Thank you so much sir”

ABINAYA K

"Sir I got 89 I lost my mark due to careless mistakes

Sir seriously I won't get this mark without you

God will always make you happy sir"

Jenitha solomon

"Hi sir, I was weak in maths and used to score border marks in maths... your videos helped me to score 82/100. Thank you sir"

HEMACHANDRAN S K

"Sir thank you so much for you sir I got 96 in maths because of you and my hard work.Once again thank you so so much"

Sathya Bama

"Sir with the help of your guidance I scored 84 mark in maths public exam .... It's a right moment to express my gratitude Thank you sir"

Surya

"Sir I am one of your online +2 students. I have scored 93 marks in maths with a total of 530 without going to any tuition. For maths I totally believed you and worked hard. I am very proud of myself scoring such a good mark in mathematics because of only one reason and that is you. Thank you Alex sir for all your efforts to help not only myself but all the students who are unable to pay huge amount of tuition fees. Once again I thank you from the bottom of my heart"
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