The approximately nuclear radii ratio of the gold isotope A79197u and the silver isotope A47107g is:

1. 1:1.23
2. 1:1.32
3. 1.01:1
4. 1.22:1

Subtopic:  Nuclear Energy |
 57%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links

A 1000 MW fission reactor consumes half of its fuel in 5.00 yr. How much U92235 did it contain initially? Assume that the reactor operates 80% of the time, that all the energy generated arises from the fission of, U92235 and that this nuclide is consumed only by the fission process.

1. 4386 kg.
2. 3076 kg.
3. 4772 kg.
4. 8799 kg.

Subtopic:  Nuclear Energy |
 54%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links

How long can an electric lamp of \(100\) W be kept glowing by fusion of \(2.0\) kg of deuterium? Take the fusion reaction as:
\({}_{1}^{2}\mathrm{H}+{}_{1}^{2}\mathrm{H}\rightarrow {}_{2}^{3}\mathrm{He}+ n + 3.27~\text{MeV}\)
1. \(4.9 \times 10^{4} \text{ years }\) 2. \(2.8 \times 10^{4} \text { years }\)
3. \(3.0 \times 10^{4} \text { years }\) 4. \(3.9 \times 10^{4} \text { years }\)
Subtopic:  Nuclear Energy |
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Suppose India had a target of producing by 2020 AD, 200,000 MW of electric power, ten percent of which was to be obtained from nuclear power plants. Suppose we are given that, on average, the efficiency of utilization (i.e. conversion to electric energy) of thermal energy produced in a reactor was 25%. How much amount of fissionable uranium would our country need per year by 2020? Take the heat energy per fission of U235 to be about 200MeV.
1. \(5.041 \times 10^4 \mathrm{~kg}.\)
2. \(2.074 \times 10^4 \mathrm{~kg}.\)
3. \(3.076 \times 10^4 \mathrm{~kg}.\)
4. \(4.026 \times 10^4 \mathrm{~kg}.\)

Subtopic:  Nuclear Energy |
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links