Intext solved problems I — task. Science State Board, Class 10.

PDF chapter test TRY NOW

1. Identify \(A\), \(B\), \(C\), and \(D\) from the following nuclear reactions.

(i)

{}_{13}{Al}^{127} + A \to {}_{15}P^{30} + B

(ii)

{}_{12}{Mg}^{24} + B \to {}_{11}{Na}^{24} + C

(iii)

{}_{92}U^{238} + B \to {}_{93}{Np}^{239} + D

(i)

{}_{13}{Al}^{127} + {}_{i}i^{i} \to {}_{15}P^{30} + {}_{i}i^{i}

(ii)

{}_{12}{Mg}^{24} + {}_{i}i^{i} \to {}_{11}{Na}^{24} + {}_{i}i^{i}

(iii)

{}_{92}U^{238} + {}_{i}i^{i} \to {}_{93}{Np}^{239} + {}_{i}i^{i}

Hence,

\(A\) is

\(B\) is

\(C\) is

\(D\) is

2. A radon specimen emits radiation of \(3.7 \times {10^{3}}\ GBq\) per second. Convert this disintegration in terms of curie.

[HINT: \(one\ curie\ =\ 3.7 \times {10^{10}}\ disintegration\ per\ second\)]

\(1\ Bq\) \(=\ 1\) disintegration per second, then

1 Bq = \frac{i}{i \times i^{i}}

So, \(3.7 \times {10^{3}}\ GBq\) is

\begin{array}{l} i \times i^{i} \times i^{i} \times \frac{i}{i \times i^{i}} \\ = i curie \end{array}

Did you find an error?

26. Intext solved problems I