X-rays are also called 

The nature of the target used for the production of X-rays should be

Which of the following are used for the study of structure of crystals ?

Bragg’s law of X-ray is correct for 

X-rays are not used in radar because 

X-rays were discovered by 

In a Coolidge tube X-rays are produced by

X-ray is an electromagnetic radiation, so X-ray photons carry 

The nature X-rays is similar to

Which of the following characteristics of X-rays increases on increasing the number of electrons striking the anticathode ?

The velocity of X-rays is equal to the velocity of 

The wavelength of the most energetic X-ray emitted when a metal target is bombarded by 40 keV electron is approximately : 

 X-rays are diffracted by 

If X-rays are deflected from their path then its cause may be 

X-rays travel a long distance in a material if their 

In majority of crystals the value of lattice constant is of the order of 3Å. The proper X-rays with which the crystal structure can be studied are

The distance between two successive atomic planes of a calcite crystal is 0.3 Å. The minimum angle for Bragg scattering of 0.3Å x-rays will be

The lattice spacing in a crystal is 0.5Å. The maximum wavelength of X-rays for which diffraction can be observed will be

X-rays do not penetrate

If X-rays are passing through different material of same thickness then its absorption is minimum in

In x-ray tube, the percentage of energy of electron converted into x-rays is -

An x-ray tube operates at 30 kV. Then the speed of the electrons when they hit the target is about.

A metal block is exposed to beam of x-rays of different wavelengths. x-rays of which wavelength penetrates most.

Difference between soft and hard X-rays is

Which of the following statements is correct for hard X-rays ?

The cause of characteristic X-rays is

The energy of a continuous X-ray photon comes from

The energy of a characteristic X-ray photon comes from

If potential difference of 10,000 volt is applied in an X-ray tube, then minimum wavelength of X-rays produced will be

When accelerated electron knock out electrons of inner shell of target atoms then we get

 Characteristic spectrum is 

Spectrum of X-rays is

The characteristic x-ray radiation is emitted when, 

Which of the following curves best represents the Moseley law ?

In an X-ray tube if the electrons are accelerated through 140KV then anode current obtained is 30mA. If the whole energy of electrons is converted into heat then the rate of production of heat at anode will be 

If the binding energy of an element nearest to the nucleus in an atom is 45 KeV , then the tube voltage, in order to emit K-series of characteristic X-rays, will be

Following diagram shows relation between emitted X-rays intensity and wavelength obtained X-ray tube its sharp peaks A and B shows

The wavelength of last line of Lyman series in the spectrum of hydrogen is 911 Å. The atomic number of that element which emits characteristic X-rays of minium wavelength of 0.7Å, will be 

50% of X-rays obtained from a Coolidge tube pass through 0.3 mm thick aluminium foil. If the potential difference between the target and the cathode is increased, then the fraction of X-rays passing through the same foil will be