Home » Ask & Discuss » Physics
« Back to Discussion

Electricity

Blazing goIITian

Joined:	11 Jan 2007
Post:	505

11 Mar 2007 20:29:38 IST

0 People liked this

579

hi !!!!!!!!!!! a salute waitin for u

Engineering Entrance , Medical Entrance , AIPMT , JEE Main , AIIMS , JEE Advanced , Physics , Electricity

a hydrigen atom proton & eletron distance between dem is .53A dey r arranged in circle wid proton at its center the hydrogen atom is considerd to b in its ground state find de speed of electron in gruond state

Comments (5)

$h0cK3r

Forum Expert

Joined: 27 Dec 2006

Posts: 565

11 Mar 2007 20:31:17 IST

Like 0 people liked this

u just have 2 use the concept of reduced mass shipra
just derive all the relations
1/redmass=1/m1+1/m2
otherwise all things r same

CyBorG

Forum Expert

Joined: 6 Jan 2007

Posts: 706

11 Mar 2007 20:33:57 IST

Like 1 people liked this

Use mvr=nh/2pi

Here r=0.53A ,m is mass of electron ,n=1

So v=2.18*10⁶m/s

Bipin Dubey

Forum Expert

Joined: 23 Jan 2007

Posts: 7958

13 Mar 2007 10:02:40 IST

Like 0 people liked this

Use mvr = nh/2

as KAB has done.

anand chandrasekhar

Scorching goIITian

Joined: 9 Mar 2007

Posts: 246

14 Mar 2007 03:48:51 IST

Like 0 people liked this

Answer: didn?t understand the question properly. the answer might be (1/137)c

Bhupesh Mohanty

Moderator

Joined: 29 Dec 2006

Posts: 1037

14 Mar 2007 10:52:56 IST

Like 0 people liked this

Dear

For the electron tobe at ground state it has to be at its first orbit and secondly for speed you can use bohrs postulate about angular momentum

mvr = nh/2pie

Quick Reply

Reply

	Some HTML allowed.
	Keep your comments above the belt or risk having them deleted.
	Signup for a avatar to have your pictures show up by your comment
	If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team