Atomic Structure Set 7

Results

#1. Neutron was discovered by Chadwick in

1935

1930

1932

1934

#2. The velocity of photon is

equal to square of its amplitude

independent of its wavelength

Equal to its wave number

equal to the velocity of light

#3. Quantum number values for 3p orbitals are

n = 0, l = 3

n = 3, l = 1

n = 2, l = 1

n = 1, l = 3

#4. The radius of first orbit of hydrogen atom

0.329 Ao

0.429 Ao

0.529 Ao

0.229 Ao

#5. All atoms are principally composed of few fundamental particles which are in number

#6. Which scientist gave the name of electron to the cathode rays

Planck

Einstein

Stoney

Bohr

#7. The divisibility of atom was showed by

Stoney

J.J. Thomson

Millikan

Rutherford

#8. The nature of cathode rays remains the same irrespective of the material used for

gas

cathode

glass

electrode

#9. Mass of electron is

9.1 x 10–31 kg

9.109 x 10–32 gm

8.1 x 10–31 g

9.1 x 10–31 mg

#10. The charge on an electron is

1.602 x 10–19 c

1.602 x 10–18 c

1.602 x 10–19 c

1.602 x 10–21 c

Finish