For a nuclear reactor, 48 kJ of energy is produced per minute. If the energy released per fission is 3.2 × 10 -11 J, then the number of fission which would be taking place in a reactor per second is

All In One Science

Book: All In One Science

Chapter: 14. Source of Energy

Subject: Physics - Class 10^th

Q. No. 4 of Challengers

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4

For a nuclear reactor, 48 kJ of energy is produced per minute. If the energy released per fission is 3.2 × 10^-11 J, then the number of fission which would be taking place in a reactor per second is

Given:

Total energy released per minute = 48 kJ

= 48 × 10³ J

Energy produced per second

= 0.8 × 10³ J

Energy release per fission = 3.2 x 10^-11 J

Solution

= 2.5x10¹³

Therefore number of fission per second is 2.5x10¹³.

So the correct answer is D.

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Chapter Exercises

Check Point 01

Check Point 02

Check Point 03

Check Point 04

Check Point 05

Chapter Exercise

Challengers

1

When the material P mined from the earth is heated strongly in an insufficient supply of air, it produces a solid fuel Q which mainly consist of carbon. When another material R obtained from trees is heated in an insufficient supply of air, it produces another solid fuel S which also consists mainly of carbon. Then, which of the following is true?

2

100 W/m² of solar energy is received by the Earth. If all the energy was to be absorbed by a bucket of water (mass 30 kg) in 30 minutes, then the rise in temperature of water will be

3

While filling LPG in cylinders, a substance X is added to make the detection of leakage of LPG from the cylinder easy. The substance X is

4

For a nuclear reactor, 48 kJ of energy is produced per minute. If the energy released per fission is 3.2 × 10^-11 J, then the number of fission which would be taking place in a reactor per second is

5

The mass number of four different elements A, B, C and D are 2, 35, 135 and 239, respectively. Which of them would provide the most suitable the most suitable for nuclear fission?