Related Questions

নিম্নের বিক্রিয়ায় কোনটি Y? 2412Mg →emit one β-rayX →emit one σ-rayY
A 2713AI
B 2311AI
C 2413AI
D 2011AI
Choose the lettered word or phrase that is most nearly opposite in meaning to the word in capital letters. EMIT :
A Absord
B demand
C mistake
D prevent
Geysers have often been compared to volcanoes------they both emit hot liquids from below the earth's surface. Choose the best word of phrase to complete the sentence.
A due to
B because
C in spite of
D regardless off
Geysers have often been compared to volcanoes _______ they both emit hot liquid from below the Earth's surface.
A due to
B because
C in spite of
D regardless of
Choose the correct answer to complete the sentence : Geysers have often been compared to volcanoes ------- they both emit hot liquids from below the Earth's surface.
A because
B regardless of
C in spite of
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
Why does'nt the hydrogen atom emit X-rays?
A It is very small in size
B It has only one electron
C Its energy levels are very close to each other
D it is highly electropositive
Fire extinguishers emit which gas?
A Carbon monoxide
B Chlorine
C Carbon dioxide
D Nitrogen
According to Stefan Boltzmann law, ideal radiators emit radiant energy at a rate proportional to
A Absolute temperature
B Square of temperature
C Fourth power of absolute temperature
D Fourth power of temperature
A radioactive substance does not emit
A α-ray
B Proton
C Position
D β-ray

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