Popular Questions
- Which one of the following pairs is not correctly matched
- The nature of anode rays depends upon
- Who discovered that cathode rays are made up of electrons
- Rutherford experiment prove
- The minimum real charge on any particle which can exist is
- Number of neutron in C12 is
- What is the ratio of mass of an electron to the mass of a proton
- Assertion : Cathode rays do not travel in straight lines. Reason : Cathode rays penetrate through thick sheets.
- Assertion : Cathode rays are a stream of α -particles. Reason : They are generated under high pressure and high voltage.
- Splitting of signals is caused by
- Magnitude of K.E. in an orbit is caused by
- If in nature there may not be an element for which the principal quantum number n>4, then the total possible number of elements wi..
- In the Bohrs hydrogen atom model, the radius of the stationary orbit is directly proportional to
- In the nth orbit, the energy of an electron
- In the spectrum of hydrogen, the ratio of the longest wavelength in the Lyman series to the wavelength in the Balmer series is
- First Bohr radius of an atom with Z= 82 is R. Radius of its third orbit is
- For Balmer series, wavelength of first line is
- Which one of the series of hydrogen spectrum is in the visible region
- If an electron in hydrogen atom jumps from an orbit of level n = 3 to an orbit of level n = 2
- What is the wavelength of light for the least energetic photon emmited in the Lyman series of the hydrogen spectrum
- Number of spectral line in hydrogen atom is
- For hydrogen atom, in which of the following transitions will the wavelength emitted photon be minimum
- The transition from the state n=4 to n=3 in a hydrogen like atom results in ultraviolet radiation
- Calculated the highest frequency of the emitted photon in the paschen series of spectral lines of hydrogen atom
- For the hydrogen atom the energy of radiation emitted in the transition from 4th excited state to 2nd excited state according to B..
- The spectral series of the hydrogen atom that lies in the visible region of the electromagnetic spectrum
- If in nature there may not be an element for which the principal quantum number n>4,
- In the Bohrs hydrogen atom model, the radius of the stationary orbit is directly proportional to
- In the nth orbit, the energy of an electron
- In the spectrum of hydrogen, the ratio of the longest wavelength in the Lyman series to the longest wavelength in the Balmer serie..
- First Bohr radius of an atom with Z = 82 is R. Radius of its third orbit is
- For Balmer series is, wavelength of first line is
- Which one of the series of hydrogen spectrum is in the visible region
- If an electron in hydrogen atom jumps from an orbit of level n = 3 to an orbit of level n = 2
- What is the wavelength of light for the least energetic photon emmited in the Lyman series of the hydrogen spectrum
- Number of spectral line in hydrogen atom is
- Ratio of masses of proton and electron is
- The nucleus of helium contains
- The nucleus of the atom consists of
- Which is correct statement about proton
