De Broglie wave nature  and atoms

De Broglie wave nature and atoms

10th - 12th Grade

10 Qs

quiz-placeholder

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De Broglie wave nature  and atoms

De Broglie wave nature and atoms

Assessment

Quiz

Physics

10th - 12th Grade

Hard

Created by

Supreet Kaur

Used 25+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Velocity of a body of mass m, having de Broglie wavelength λ, is given by

v=λh/m

v=λm/h

v=λ/hm

v=h/λm

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Moving with the same velocity, which of the following has the longest de broglie wavelength?

β particle

α- particle

proton

neutron

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The wavelength associated with an electron accelerated through a potential difference of 100V is of the order

1000 Ao

10.5 Ao

100 Ao

1.2 Ao

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these (having same kinetic energy) has the largest de broglie wavelength?

Electron

Alpha particle

Proton

Neutron

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If the kinetic energy of the particle is increased to 16times its previous value, the percentage change in the de Broglie wavelength of the particle is

25

75

60

50

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When a narrow accelerated beam of α particles is allowed to fall on a thin gold foil, most of the α particles pass straight through the foil or suffer only small deflections, This is because

α particles are positively charged

α particles are much massive than electrons

most of the space within the atom is empty

α particles move with high velocity

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An elementary particle of mass m and charge +e is projected with velocity v at a much more massive particle of charge Ze, where Z>0. What is the closest posssible approach of the incident particle?

Ze2/2πε0mv2

Ze2/8πε0mv2

Ze2/2πrε0mv2

Ze2/2πε0v2

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