The energy of the 4th orbit in hydrogen atom is:

K? characteristics X-Rays are produced due to the transition of the electrons:

The type of spectra produced by atom is:

The diameter of the atom is the order of:

CAT-scans can be used to detect tumors in:

The penetrating power of X-Rays depends on their:

The wave length of shortest wave length inLyman series is equal to:

The total energy of the electron in nth orbit of hydrogen atom around the nucleus is given by:

Radiation with wavelength greater than red light is called:

The line spectrum of hydrogen atom contains the spectral lines in the region:

X-Rays can cause:

If the ionization energy of hydrogen atom is 13.6eV, the ionization potential will be:

The branch of physics which deals with the investigation of wavelength and intensities of elctromagnetic radiation emitted or absorbed by atoms is called:

When electron in hydrogen atom jumps from higher orbit into first orbit, the set of lines emitted is called

The total energy of the electron in the nth orbit of hydrogen atom can also be written as:

The potential required to lift an electron from ground state to higher energy state is called:

Pfund series contains the wavelength given by the forumula:

Which of the following is an example of line spectra?

A X-Rays Photon produced due to transition of electron from M-Shell to K-Shell is called:

The spectrum of visible sun light ranges from:

When electron in hydrogen atom jumps from higher orbit into second orbit, the set of lines emitted is called

Brackett and Pfund series of spectral lines lies in the:

The value of Rydberg's Constant RH is:

In X-Rays producing arrangement, target is made of:

The spectral series were identified in the spectrum of hydrogen by:

The total energy of an electron remains constant:

The numerical value of ground state energy for hydrogen atom is:

The potential required to lift an electron from ground state to excited state is called:

One Widely used system is computerized axial tomography is called:

The emissions of photons by a metal when electrons are incident is called:

X-Rays and gamma rays of the same wavelength and intensity can be differentiated by observing:

X-Rays cannot produce pair production because:

X-Rays are affected by:

Bohr's atomic model of hydrogen atom was proposed by Bohr in:

Total energy of an electron in an orbit around the nucleus is:

In the state n = ? of hydrogen atom, total energy of electron is:

Which of the following shell is closest to nucleus

In the spectrum of which of the following will you find Balmer series:

The reverse process of photoelectric effect is called

The energy of X-Rays depends upon:

J.R. Rydberg obtained a formula to describe the wavelength of the hydrogen atom in:

Which of the following is an example of band spectra?

X-Rays can:

The continuous X-Rays spectrum is due to an effect known as:

The radius of the third Bohr orbit in hydrogen atom is greater than the radius of the first orbit by a factor of:

Lyman series contains the wavelength given by the forumula:

The continuous X-Rays spectrum is obtained due to:

The rest mass of X-Rays Photon is:

X-Rays are similar in nature to:

The scientist who studied the wavelength of all lines of the hydrogen spectrum in visible region was:

X-Rays are electromagnetic wave having wavelength in the range of:

CAT stands for:

With increasing orbit number(n) the energy difference between adjacent levels in atoms:

According to Bohr Atomic Model, the angular momentum of electron in an orbit equal to an integral multiple of:

X-Ray diffraction reveals that they are:

The magnitude of ionization of hydrogen is:

An is equal to:

When an electron exists in its lowest state, it is called:

After the emission of X-Rays, the atom of the target is:

When electron in hydrogen atom jumps from higher orbit into fifth orbit, the set of lines emitted is called

The transition of electrons between the various shells give rise to:

Balmer series contains the wavelength given by the formula:

En-Ep = hf, where hf is the energy of:

The SI unit of Rydberg constant is:

If an electron jumps from lower to higher orbit it will:

According to 3rd postulate of Bohr's theory

The energy required to completely remove an electron from the atom is called:

Balmer series contains the wavelength in the:

Which of the phenomenon can be studied with X-Rays

Which of the following is an example of continuous spectra?

X-Rays exhibit the phenomenon of:

X-Rays eject electrons from matter by:

Which of the following is the spectral series of atomic hydrogen?

When electron abosrbs some energy, it jumps to:

The velocity of moving electron in nth orbit is given by the relations:

X-Rays were discovered in 1895 by:

When an electron jumps from higher energy orbit to lower energy orbit, the difference of encergy appears in the form of:

The radius of 1st Bohr's orbit for hydrogen atom is:

If the nummber of electrons hitting the target in the x-tube increases, then the intensity of the X-Rays:

The radius of nth orbit of hydrogen atom can be given by:

X-Rays are:

Ionization energy of Hydrogen atom m first exited stated is:

Which of the following radiation will burn human skin?

The speed of the electron in the first Bohr orbit is:

The velocity of X-Rays is equal to that of:

The first spectral series in the spectrum of hydrogen atom was identified by Balmer in:

The total energy of an electron revolving in the second orbit is:

The relation between Rydberg constant(RH) and ground state energy (En) is given by the relation:

The separation of ordinary whtie light into its components by the use of prism or grating is called:

The radiation emitted from hydrogen filled discharge tube shows:

Balmer empirical formula explain the electromagnetic radiations of any excited atom is in terms of their:

The wavelength of Lyman series for hydrogen spectrum lies in the:

Electrostatic force between the electron and the nucleus of hydrogen atom is given by:

Total energy of an electron in an orbit around the nucleus is the sum of:

The P.E. of an electron revolving at a distance rn from the nucleus is: