Home
Class 12
PHYSICS
A hydrogen atom makes a transition from ...

A hydrogen atom makes a transition from `n=2` to `n=1` and emits a photon. This photon strikes a doubly ionized lithium atom `(Z=3)` in excited state and completely removes the orbiting electron. The least quantum number for the excited stated of the ion for the process is:

A

2

B

4

C

5

D

3

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NTA JEE MOCK TEST 40

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos
  • NTA JEE MOCK TEST 42

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos
NTA MOCK TESTS-NTA JEE MOCK TEST 41-PHYSICS
  1. A hydrogen atom makes a transition from n=2 to n=1 and emits a photon....

    Text Solution

    |

  2. Two masses m(1), and m(2) are connected by a string of length L. They ...

    Text Solution

    |

  3. The figure below shows a block of mass M connected to an ideal string ...

    Text Solution

    |

  4. A magnetic compass needl oscillates 30 times per minute at a place whe...

    Text Solution

    |

  5. A planet revolves about the sun in an elliptical orbit of semi-major a...

    Text Solution

    |

  6. An ideal monoatomic gas undergoes an expansion from state A to state B...

    Text Solution

    |

  7. Two long coaxial solenoids of radius R and 2R have equal number of tu...

    Text Solution

    |

  8. In an experiment to determine the resistance of a galvanometer by half...

    Text Solution

    |

  9. A particle of mass'm' is projected with velocity v(0) at an angle 'alp...

    Text Solution

    |

  10. A thin uniform equilateral plate rests in a vertical plane with one of...

    Text Solution

    |

  11. The intensity of gamma - radiation from a given source is I. On passin...

    Text Solution

    |

  12. A photoelectric surface is illuminated successively by monochromatic l...

    Text Solution

    |

  13. The ratio of surface tensions of mercury and water is given to be 7.5 ...

    Text Solution

    |

  14. Light is incident normally on face AB of a prism as shown in Figure. A...

    Text Solution

    |

  15. A spool of mass M = 3 kg and radius R = 20 cm has an axle of radius r ...

    Text Solution

    |

  16. A zener diode has a contact potential of 1 V in the absence of biasi...

    Text Solution

    |

  17. Two rods A and B of identical dimensions are at temperature 30^(@)C. I...

    Text Solution

    |

  18. If L,C and R denote the inductance, capacitance and resistance respect...

    Text Solution

    |

  19. A ray of light is incident at an angle of 45^@ (ralative to the normal...

    Text Solution

    |

  20. Two sound waves of wavelengths 98cm and 100cm arrive at the same point...

    Text Solution

    |