1800-150-456-789
FlagBACK
Flag Electrostatics> An alpha particle moves toward a rest nuc...
question mark

An alpha particle moves toward a rest nucleus if k.e is 10 MeV and atomic no of nucleus is 50.the closest approach will be

Abhishek , 8 Years ago
Grade 12
anser 2 Answers
Nandakumar

Last Activity: 8 Years ago

I think you have to equate kinetic and potential energy ie 1/2mv2=1/4pi€×2Ze2/r r is the distance of closest approach by substituting the values you get r=14.4×10-15 m

Pratham Savjani

Last Activity: 5 Years ago

Here we need to equate Potential Energy and Kinetic energy.
Therefore
K.E=P.E
1/2 mv^2 = kq1q2/r
r=kq1q2/0.5mv^2
r=9*10^9*2e*50e/10 mev
Search the value of mev in terms of joules and substitute it.
e=1.6*10^-19
You will get answer as 1.44*10^-14

Provide a better Answer & Earn Cool Goodies

star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Other Related Questions on electrostatics

question mark
Electrostatics question based on earthing of spherical shell
electrostatics
0 Answer Available

Last Activity: 2 Years ago

question mark
an object has a charge of 2c and gains 10^19 electrons. the net chaarge on the object becomes??
electrostatics
1 Answer Available

Last Activity: 3 Years ago

question mark
A wire with a linear charge density lambda forms a quarter of a cjrclenof radius R and is placed asa shown in thefigure with its centre of curvature at the origin O the electric field at O will be
electrostatics
0 Answer Available

Last Activity: 3 Years ago

question mark
Find the value of q so that system remains in equilibrium.. figure attached below
electrostatics
0 Answer Available

Last Activity: 3 Years ago

question mark
Find the value of q so that system remains in equilibrium
electrostatics
0 Answer Available

Last Activity: 3 Years ago