A. Is independent of wavelength
B. Depends upon source
C. Depends upon its frequency
D. Equals to the square of amplitude
Related Mcqs:
- When an electron is moving with velocity of 2.188 x 106 ms-1 in the first orbit of Bohrs model of hydrogen. The de Broglie wavelength of electron is______________?
A. 0.33 nm
B. 0.34 nm
C. 0.35 nm
D. 0.36 nm - All of the following were theorized by Bohr in his description of the atom except__________________?
A. Angular momentum of electrons in multiples of h/2?
B. Electrons revolve in discrete circular orbits
C. Energy of each electron is directly proportional to n2
D. Electrons radiate energy continuously in a given orbit. - Pressure in gas discharge tube was kept________________?
A. 10 torr
B. 1 torr
C. 0.1 torr
D. 0.01 torr - Angle of deflection was studied by________________?
A. Hitorff
B. Stoney
C. William Crookes
D. J.Perrin - The correct electronic configuration of Cu is ___________________?
A. [Ar]4s1
B. [Ar]4s2
C. [Ar]3d104s1
D. [Ar]3d94s2 - Spectrum is produced due to________________?
A. Different wavelength
B. Different colours
C. Different intensities
D. all have little contribution - Colour of fluorescene produced by cathode rays depends upon________________?
A. Temperature
B. Pressure
C. Volume
D. Composition of glass - Positive rays are produced__________________?
A. By burning of gas
B. By cooling of the gas
C. By the bombardment of cathode rays on gas molecules
D. From anode like cathode rays produced from cathode - Charge of electron was measured by__________________?
A. J.J Thomson
B. Millikan
C. Rutherford
D. Perrin - Quantum number which tells the energy of electron is________________?
A. n
B. 1
C. m
D. s
