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A nucleus is at rest in the laboratory f...

A nucleus is at rest in the laboratory frame of reference. Show that if it disintegrates into two smaller nuclei the products must be emitted in opposite directions.

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To solve the problem of showing that a nucleus at rest disintegrates into two smaller nuclei emitted in opposite directions, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Initial Condition**: - We start with a nucleus (mass \( M \)) that is at rest in the laboratory frame of reference. This means that its initial momentum is zero. 2. **Define the Disintegration**: ...
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NCERT ENGLISH-LAWS OF MOTION -EXERCISE
  1. Two bodies of masses 10 kg and 20 kg respectively kept on a smooth hor...

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  2. Two masses 8 kg and 12 kg are connected at the two ends of a light in ...

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  3. A nucleus is at rest in the laboratory frame of reference. Show that i...

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  4. Two billiard balls each of mass 0.05 kg moving in opposite directions ...

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  5. A shell of mass 200g is fired by a gun of mass 100kg. If the muzzle sp...

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  6. A batsman deflects a ball by an angle of 45^(@) without changing its i...

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  7. A stone of of mass 0.25 kg tied to the end of a string is whirled roun...

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  8. If in Q . 21 the speed of the stone is increased beyond the maximum pe...

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  9. Explain why (a) A horse cannot pull a cart and run in empty space. ...

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  10. Figure shows the position-time graph of a particle of mass 0.04kg. Sug...

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  11. Figure shown a man standing stationary with respect to a horizontal co...

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  12. A stone of mass m tied to the end of a string revolves in a vertical c...

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  13. A helicopter of mass 1000 kg rises with a vertical acceleration of 15 ...

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  14. A stream of water flowing horizontally with a speed of 15 ms^(-1) push...

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  15. Ten one-rupee coins are put on top of each other on a table. Each coin...

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  16. An aircraft executes a horizontal loop at a speed of 720 km h^(-1), wi...

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  17. A train rounds an unbanked circular bend of radius 30 m at a speed of ...

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  18. A block of mass 25 kg is raised by a 50kg man in two different ways as...

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  19. A monkey of mass 40 kg climbs on a rope which can withstand a maximum...

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  20. Two bodies A and B of mass 5 kg and 10 kg contact with each other rest...

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