The letters s p d and f are used to represent which quantum numbers________________?
A. Principal
B. Azimuthal
C. Magnetic
D. S
Atomic Structure
Three quantum number have been derived from equation of____________________?
Three quantum number have been derived from equation of____________________?
A. de-Broglie
B. Plancks
C. Schrodinger
D. Heisenberg
Splitting of spectral lines when atoms are subjected to strong electric filed is called_________________?
Splitting of spectral lines when atoms are subjected to strong electric filed is called_________________?
A. Zeeman effect
B. Stark effect
C. Photoelectric effect
D. Compton effect
When electron jump into orbit 1 then series obtained is___________________?
When electron jump into orbit 1 then series obtained is___________________?
A. Lyman
B. Paschen
C. Pfund
D. Brackett
Spectrum is produced due to________________?
Spectrum is produced due to________________?
A. Different wavelength
B. Different colours
C. Different intensities
D. all have little contribution
Milikan used ______________ in his atomizer?
Milikan used ______________ in his atomizer?
A. Milk
B. Honey
C. Oil
D. Water
Electronic configuration of K is_________________?
Electronic configuration of K is_________________?
A. [Ar]4s2
B. [Ar]4s1
C. [Kr]5s1
D. [He]2s1
Space around nucleus where finding probability of electrons is maximum is called ____________________?
Space around nucleus where finding probability of electrons is maximum is called ____________________?
A. Orbital
B. Orbit is elliptical
C. subshell
D. Electron cloud
Atom with higher atomic number produces X-rays of__________________?
Atom with higher atomic number produces X-rays of__________________?
A. Shorter wavelength
B. Larger wavelength
C. X-ray not produced
D. All are possible
When electrons collide with heavy metals than ___________ are produced?
When electrons collide with heavy metals than ___________ are produced?
A. Beta-rays
B. Alpha-rays
C. X-rays
D. Gamma-rays