In the wave mechanical theory, the maximum of the charge distribution in the gro

CuriousTab

Home Aptitude

Discussion

Home ‣ Electronics and Communication Engineering ‣ Materials and Components See What Others Are Saying!

Question
In the wave mechanical theory, the maximum of the charge distribution in the ground state occurs for a distance from the nucleus equal to
Options
A. first Bohr radius
B. second Bohr radius
C. third Bohr radius
D. either first or second Bohr radius

Correct Answer

first Bohr radius

Explanation

The total charge associated with an electron moving about nucleus in the ground state of hydrogen atom is given by

In the wave mechanical theory, the maximum of the charge distribution in the ground state occurs for

4p²rr(r)dr.

This integrand has a maximum value at r = radius of first Bohr orbit.

More questions

4. In a shield helix
Options
A. the spacing between adjacent turns is very large
B. the spacing between adjacent turns approaches zero
C. the spacing between adjacent turns approaches zero and wire thickness approaches zero
D. the spacing between adjacent turns is very large wire thickness approaches zero

Discuss

5. Match the following:

	List I		List II
A.	200 MHz	1.	SHF
B.	20 GHz	2.	UHF
C.	500 kHz	3.	VHF
D.	500 MHz	4.	MF

Options
A. A-3, B-1, C-4, D-2
B. A-3, B-2, C-4, D-1
C. A-3, B-4, C-1, D-2
D. A-3, B-4, C-2, D-1

Discuss

6. A line of characteristic impedance Z₀ branches into two line each with characteristic impedance Z₀. The refracted voltage is
Options
A. zero
B. infinite
C. equal to incident voltage
D. two third of incident voltage

Discuss

8. A surge voltage
Options
A. has very high magnitude and very long duration
B. has very high magnitude and very small duration
C. has very high magnitude and very small duration and can be positive or negative
D. can be only positive

Discuss

10. The following components are used to measure power output of a 2 kW TWT amplifier
1. TWT
2. Low pass/High pass filter
3. Low power 20 dB attenuator
4. 40 dB directional coupler with matched load
5. Power meter.
The correct sequence of connections of these components is:
Options
A. 1, 4, 2, 3, 5
B. 1, 3, 4, 2, 5
C. 1, 2, 4, 3, 5
D. 1, 4, 3, 2, 5

Discuss

Comments

LeighTiext
I confirm. So happens. I'm shocked, this is personal of the most interesting videos due to the fact that real boy that I watched. I suggest to watchman on the on the ball an eye to it, I unquestionably could not precipitateness myself away from watching it. Would neck to do the lull and all again. Who steer help?

Barbarapreox
It is simply magnificent phrase I'm shocked, this is individual of the most compelling videos by reason of the duration of real boy that I watched. I induce to shield it, I plainly could not tear myself away from watching it. Would sweet-smelling to do the exact anyhow again. [url=]twink sling[/url] Who drive help?

Barbarapreox
Even so I'm shocked, this is sole of the most compelling videos for the duration of real boy that I watched. I support to watch it, I definitely could not aggrieve myself away from watching it. Would suitor to do the at any status again. [url=]girls tied to bed[/url] Who figure out help?

CuriousTab

CuriousTab

Discussion

In the wave mechanical theory, the maximum of the charge distribution in the ground state occurs for a distance from the nucleus equal to

More questions

More in Electronics and Communication Engineering:

Aptitude

Engineering

Programming

Reasoning

Links

CuriousTab

CuriousTab

Discussion

In the wave mechanical theory, the maximum of the charge distribution in the ground state occurs for a distance from the nucleus equal to

More questions

More in Electronics and Communication Engineering:

Aptitude

Engineering

Programming

Reasoning

Links

Social