Related Questions

Which of the following statements is correct about sound waves and light waves?
A Both transverse waves
B Both longitudinal waves
C Sound waves are transverse waves and light waves are longitudinal waves
D Sound waves are longitudinal and light waves are transverse 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?)
A 2λ
B λ
C λ/2
D λ/4
He sleeps a sound sleep, এখানে Sound শব্দটি
A Adjective
B Noun
C Pronoun
D Adverb
Which from the following is true for 'Sound'?Sound cannot pass through ---.
A through gases
B through a vacuum
C through liquids
D through a soks
How much times a sound stay in our brain after listening the sound ?
A 1 sec
B 0.1 sec
C 0.01 sec
D 0.001 sec
They reached home safe and sound. Here 'safe and sound' is a/an:
A adjective phrase
B adverbial phrase
C proverb
D idiom
He sleep a sound sleep. Here 'sound' is a /an
A adverb
B adjective
C noun
D pronoun
Sound travels with a different speed in media. In what order does the velocity of sound increase in these media?
A Water, iron and air
B Iron, air and water
C Air, water and iron
D Iron, water and air
He sleeps a sound sleep. এখানে sound শব্দটি-
A Noun
B Pronoun
C Adjective
D Adverb
He sleeps a sound sleep 'sound' শব্দটি-
A Adverb
B Adjective
C Noun
D Pronoun

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