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A photon is always emitted when an electron moves from:

NETNUST Entry TestPhysicsAtomic Spectra

$K_{\beta}$ X-rays are actually:

NETNUST Entry TestPhysicsAtomic Spectra

X-ray photons are:

NETNUST Entry TestPhysicsAtomic Spectra

The anode used in the X-ray tube is usually made of:

NETNUST Entry TestPhysicsAtomic Spectra

X-ray tube used for production of X-rays contains:

NETNUST Entry TestPhysicsAtomic Spectra

The study of characteristic X-ray spectra has played an important role in the study of:

NETNUST Entry TestPhysicsAtomic Spectra

The energy difference between first and second orbit of hydrogen atom is:

NETNUST Entry TestPhysicsAtomic Spectra

The transition of the electrons in the hydrogen atom result in the emission of spectral lines in the:

NETNUST Entry TestPhysicsAtomic Spectra

X-rays are:

NETNUST Entry TestPhysicsAtomic Spectra

Energy required by an electron revolving in certain orbit to jump to an excited state is called:

NETNUST Entry TestPhysicsAtomic Spectra

The value of $\frac{E_{o}}{hc}$ comes out to be equal to the value of:

NETNUST Entry TestPhysicsAtomic Spectra

By notation, the distance of nth orbit from the nucleus is:

NETNUST Entry TestPhysicsAtomic Spectra

Normally the electron of the hydrogen atom is in the energy state which is:

NETNUST Entry TestPhysicsAtomic Spectra

Energy required to remove an electron completely from the first Bohr orbit is given by:

NETNUST Entry TestPhysicsAtomic Spectra

The speed of the electron in the nth orbit is given as:

NETNUST Entry TestPhysicsAtomic Spectra

The radius of the first Bohr orbit of hydrogen atom is:

NETNUST Entry TestPhysicsAtomic Spectra

The radii of different orbits around the nucleus of an atom are given by:

NETNUST Entry TestPhysicsAtomic Spectra

Tick the correct equation:

NETNUST Entry TestPhysicsAtomic Spectra

Prince de Broglie suggested for the length of Bohr's orbit that:

NETNUST Entry TestPhysicsAtomic Spectra

Whenever an electron makes a transition:

NETNUST Entry TestPhysicsAtomic Spectra

mvr is an expression for:

NETNUST Entry TestPhysicsAtomic Spectra

Only those orbits are allowed for the electrons of hydrogen atom for which orbital angular momentum is equal to an integral multiple of:

NETNUST Entry TestPhysicsAtomic Spectra

During the transition of electron of hydrogen atom from higher orbit to third orbit, a photon of:

NETNUST Entry TestPhysicsAtomic Spectra

When the electron of hydrogen atom is made to jump from lower orbit to fourth orbit, a photon of:

NETNUST Entry TestPhysicsAtomic Spectra

An electron of the hydrogen atom in the second orbit is called its:

NETNUST Entry TestPhysicsAtomic Spectra