Structure of Atom Quiz 5 – Punjab Meritorious School Preparation Portal

Welcome to your Structure of Atom Quiz 5 CBT TEST

Fill the Details mentioned below and Attempt the Test.

Name

School Name with City

Phone Number

The de Broglie wavelength of a tennis ball of mass 60 g moving with a velocity of 10 metres per second is approximately (Planck’s constant, h = 6.63 × 10^–34 Js)

The wavelength of a moving electron having 4.55 × 10^–25 J of kinetic energy is :

The mass of a photon with a wavelength equal to 1.54 × 10^–8 cm is

If electron, hydrogen, helium and neon nuclei are all moving with the velocity of light, then the wavelength associated with these particles are in the order

Electron > hydrogen > helium > neon

Electron > helium > hydrogen > neon

Electron < hydrogen < helium < neon

Neon < hydrogen < helium < electron

Which one of the following represents noble gas configuration :

The de-Broglie wavelength of an electron in the ground state of hydrogen atom is : [K.E. = 13.6 eV; 1eV = 1.602 × 10^-19J]

33.28 nm

3.328 nm

0.3328 nm

0.0332 nm

Which of the following is related with both wave nature and particle nature ?

If the radius of first Bohr orbit be a0, then the radius of the third orbit would be

The ratio of the radius of the first Bohr orbit for the electron orbiting the hydrogen nucleus to that of the electron orbiting the deuterium nucleus (mass nearly twice that of the hydrogen nucleus) is approximately

2 : 1

1 : 1

1 : 2

4 : 1

When a metal surface is exposed to solar radiations

The emitted electrons have energy less than a maximum value of energy depending upon frequency of incident radiations

The emitted electrons have energy less than maximum value of energy depending upon intensity of incident radiation

The emitted electrons have zero energy

The emitted electrons have energy equal to energy of photons of incident light

Please fill in the comment box below.

Time is Up!

Time's up