Related Questions

Which of the following statements is correct about sound waves and light waves?
দুটি সুসঙ্গত উৎস থেকে λ দৈর্ঘ্যের দুটি তরঙ্গ সমদশায় বের হয় । একটি বিন্দুতে যেখানে তরঙ্গ দুটি মিলিত হয় সেখানে তাদের দশা পার্থক্য 90° । তরঙ্গ দুটির অতিক্রান্ত পথ পার্থক্য তখন কত ? ( Two coherent sources emit waves of wavelength λ which are in phase. which are in phase. The two waves meet at a point where they have a phase difference of 90°. Which of the following could be the traversed path difference between the waves?)
He sleeps a sound sleep, এখানে Sound শব্দটি
Which from the following is true for 'Sound'?Sound cannot pass through ---.
How much times a sound stay in our brain after listening the sound ?
They reached home safe and sound. Here 'safe and sound' is a/an:
He sleep a sound sleep. Here 'sound' is a /an
Sound travels with a different speed in media. In what order does the velocity of sound increase in these media?
He sleeps a sound sleep. এখানে sound শব্দটি-
He sleeps a sound sleep 'sound' শব্দটি-