12th Class PHYSICS Online Quiz Chapter No.9 ATOMIC SPECTRA

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

Balmer series contains the wavelength in the:

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

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

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

The radiation emitted from hydrogen filled discharge tube shows:

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

X-Rays are affected by:

CAT stands for:

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

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

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

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

Lyman series contains the wavelength given by the forumula:

X-Rays cannot produce pair production because:

Which of the following shell is closest to nucleus

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

The type of spectra produced by atom is:

The value of Rydberg's Constant RH is:

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

Which of the following is an example of continuous spectra?

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

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

CAT-scans can be used to detect tumors in:

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

The penetrating power of X-Rays depends on their:

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

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

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

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

The total energy of an electron remains constant:

The energy of X-Rays depends upon:

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

The magnitude of ionization of hydrogen is:

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

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

The reverse process of photoelectric effect is called

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

Which of the phenomenon can be studied with X-Rays

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

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

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

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

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

When electron abosrbs some energy, it jumps to:

X-Rays can:

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

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

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

Which of the following is an example of line spectra?

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

X-Rays can cause:

One Widely used system is computerized axial tomography is called:

The SI unit of Rydberg constant is:

According to 3rd postulate of Bohr's theory

Which of the following is an example of band spectra?

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

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

Brackett and Pfund series of spectral lines lies in the:

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

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

Radiation with wavelength greater than red light is called:

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

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

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

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

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

X-Ray diffraction reveals that they are:

Pfund series contains the wavelength given by the forumula:

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

Balmer series contains the wavelength given by the formula:

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

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

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

X-Rays are:

X-Rays eject electrons from matter by:

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

X-Rays are similar in nature to:

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

The diameter of the atom is the order of:

Ionization energy of Hydrogen atom m first exited stated is:

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

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

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

The continuous X-Rays spectrum is obtained due to:

The spectrum of visible sun light ranges from:

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

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

An is equal to:

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

X-Rays exhibit the phenomenon of:

Which of the following radiation will burn human skin?

The rest mass of X-Rays Photon is:

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

X-Rays were discovered in 1895 by: