Home › CBSE Class 12 (Science) › Physics › Nuclei › Becquerel found a wrapped photographic plate bla…
Becquerel found a wrapped photographic plate blackened by which salts?
APolonium salts
BThorium salts
CUranium salts
DRadium salts
Answer & Solution
Correct answer: C. Uranium salts
Only uranium salts darkened the plate despite its black paper cover.
Related questions
The Sun is about 5 × 10⁹ years old. Its hydrogen should last about how much longer?What is the main challenge in controlled thermonuclear fusion?Controlled fusion reactors aim to heat fuel to about what temperature?What will the Sun become after its core hydrogen is exhausted?At about 10⁸ K, a star's core fuses helium nuclei into what?How much energy is released when four hydrogen atoms fuse into helium?The net result of the Sun's proton-proton cycle is four hydrogen forming what?Fusion driven by raising the temperature is called what?