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হোম›নবম-দশম শ্রেণি›English Version›Physics›C-13 — Radioactivity and Electronics›C-13-Q055

C-13-Q055mediummulti_combo_mcq

Consider the following uses of radioactivity: Which of the following is correct?

making equipment germ-free
detecting smoke
determining the amount of metals in minerals

ai and ii
bi and iii
cii and iii
di, ii and iii

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55/123

Jপরবর্তী

এই অধ্যায়ের আরও প্রশ্ন

C-13-Q056Marie Curie died due to —
C-13-Q057Which of the following effects can radioactivity have on the human body?
C-13-Q058The most devastating event caused by radioactivity in history is associated with —
C-13-Q059Radioactive wastes from nuclear power plants can remain radioactive for —
C-13-Q060The gradual development of electronics can be divided into how many main parts?
C-13-Q061Which of the following correctly lists the three stages of development of electronics?
C-13-Q062In which year did Edison observe the flow of current through a vacuum from filament to a metal plate?
C-13-Q063The flow of current through a vacuum from the filament to the plate is known as —
C-13-Q064Who first created a two-electrode vacuum tube in 1904?
C-13-Q065The first vacuum tube created by Fleming worked as a —

C-13 — Radioactivity and Electronics — সব প্রশ্ন দেখুন (123টি) →