Chapter 18: Problem 2549
The shape of the graph \(\ln 1 \rightarrow t\) is (A) straight Line (B) Parabolic curve (C) Hyperbole curve (D) random shape curve
Chapter 18: Problem 2549
The shape of the graph \(\ln 1 \rightarrow t\) is (A) straight Line (B) Parabolic curve (C) Hyperbole curve (D) random shape curve
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Get started for freeThe control rod in a nuclear reactor is made of (A) uranium (B) cadmium (C) plutonium (D) graphite
The hydrogen atom can give spectral lines in the series Lyman, Balmer and Paschen. which of the following statement is correct (A) Lyman series is in the infrared region (B) Balmer series is in the ultraviolet region (C) Balmer series is in the visible region (D) Paschen series is in the visible region.
Radio carbon dating is done by estimating in the specimen (A) the amount of ordinary carbon still present (B) the ratio of the amounts of \({ }^{14}{ }_{6} \mathrm{C}\) to ${ }_{6} \mathrm{C}^{12}$ (C) the amount of radio carbon still Present (D) None of these
A radioactive sample has \(\mathrm{n}_{0}\) active atom at \(\mathrm{t}=\mathrm{o}\), at the rate of disintegration at any time is \(\mathrm{R}\) and the number of atom is \(\mathrm{N}\), then ratio. $(\mathrm{R} / \mathrm{N})\( varies with time \)(\mathrm{t})$ as.
Plutonium decays with half life time 24000 yrs. if Plutonium is stored after 72000 yrs, the fraction of it that remain (A) \((1 / 2)\) (B) \((1 / 9)\) (C) \((1 / 12)\) (D) \((1 / 8)\)
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