About movement of particles in a progressive wave

[@sachinrath219]

in this wave i believe the initial phase may be 180 degrees ie the point may be moving downwards,for eg.when a string is initially given an upward pulse.

[@harindubathigama3932]

It was very helpful... Tysm

[@akarshmalik307]

Balgam soooooo much sir..... Nice work done!!!

[@monikaraghav5166]

Thank you so much sir for your great lectures

[@tobiodejimi7733]

great short and concise video

[@이동현-t4y]

Great video sir!

[@DreamWorker-jm5xn]

Excellent, sir, excellent!

[@hellolife14]

very good sir

[@mangiferaindica8720]

💛

[@VK-il9kv]

thanks so much

[@joshuakay5917]

Thanks alot Sir

[@irdinanawi8808]

Thankyouuuu

[@pjbj12]

very vague