Home
Class 12
PHYSICS
When an electron jumps from a level n =...

When an electron jumps from a level `n = 4` to` n = 1`, the momentum of the recoiled hydrogen atom will be

Text Solution

Verified by Experts

`DeltaE=13.6(1-1/16)=(13.6xx15)/16=51/4`
`=12.75eV=(12.75xx1.6xx10^(-19))/(3xx10^(8))`
Photon will take away almost all of the energy
`(hc)/(lamda)=12.75eV`
`impliesh/(lamda)=(12.75/c)=P_("photon")=P_("revoled atom")`
`6.8xx10^(-27)` kg m/s
Promotional Banner

Topper's Solved these Questions

  • CHAPTERWISE NUMERIC /INTEGER ANSWER QUESTIONS

    DISHA PUBLICATION|Exercise CHAPTER 27 : (NUCLEI)|15 Videos

  • CHAPTERWISE NUMERIC /INTEGER ANSWER QUESTIONS

    DISHA PUBLICATION|Exercise CHAPTER 28 : (SEMICONDUCTOR ELECTRONICS; MATERIALS, DEVICES AND SIMPLE CIRCUITS)|15 Videos

  • CHAPTERWISE NUMERIC /INTEGER ANSWER QUESTIONS

    DISHA PUBLICATION|Exercise CHAPTER -25 : (DUAL NATURE OF RADIATION AND MATTER)|15 Videos

  • ATOMS

    DISHA PUBLICATION|Exercise EXERCISE-2: CONCEPT APPLICATOR|30 Videos

  • COMMUNICATION SYSTEM

    DISHA PUBLICATION|Exercise EXERCISE-2 : Concept Applicator|30 Videos

Similar Questions

Explore conceptually related problems

In a stationary hydrogen atom, an electron jumps from n = 3 ot n =1. The recoil speed of the hydrogen atom is about

When electron jumps from n=4 level to n=1 level,the angular momentum of electron changes by

In hydrogen atom, electron makes transition from n = 4 to n = 1 level. Recoil momentum of the H atom will be

An electron in H atom makes a transition from n = 3 to n = 1 . The recoil momentum of the H atom will be

When an electron jumps from n=4 to n=2 orbit in a hydrogen atom, we get,

A hydrogen atom emits a photon corresponding to an electron transition from n = 5 to n = 1 . The recoil speed of hydrogen atom is almost (mass of proton ~~1.6 xx 10^(-27) kg) .

In Bohr's atomic model for hydrogen like atoms match the following column : {:(,"Column I",,"Column II"),((A),"If electron jumps from n = 32 to n = 1",(p),"Speed of electron will become 2 times"),((B),"If electron jumps from n = 1 to n = 4",(q),"Kinetic energy of electron will become 4 time"),((C),"If electron jumps from n = 4 to n = 4",(r),"Angular momentum of electron will becomes 2 times"),(,,(s),"Angular velocity of electron will becomes 4 times"),(,,(t),"None"):} .