If  is The Radsies Of The First Orbit Of Hydrogen Atom, Then The Radii Of Second, Third And Forth Orbit In Terms Of  us.

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Question

Solution

Correct option is

Testing

SIMILAR QUESTIONS

Q1

If the X-rays tulie is working at 20kv. Then the minimum wavelentgth of X – rays will be.

Q2

An X – rays tulie is operating at 15kv. The lower limit of the wavelength of X – rays produced is:

Q3

The lattice constant of a crystal is 2.   the manimum wavelength of X – rays which can ba analysed by this arystal will be.

Q4

The frequency of the line k line of the characteristtis X – rays spectrum is proportional to.

Q5

50% of  X – rays oltained from a Coolidge tukie pass through 0.3mm thick  alminium  fail. If the P.D. letueen thew target and the cathode is increased.then the fractuion of X – rays passing from fail will be.

Q6

The threshold wavelength of sodiam  metal is 6800the work function is:

Q7

The work function of a sulsstance is 4.0ev the longest wavelength of light that can cause photoelectron emission from this sulsstance is opprinately.

Q8

Potential energy of li2t electron is

Q9

The slope of frequency of incident light and stopping  potential for a given  surface will be.

Q10

Which of the following. Species will produe the shorte wavelength for thetransition  n = 2 to n = ?