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MATTER WAVES

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.

What is the formula for De Broglie's wavelength

a)

wavelength = planck's constant/(mass*velocity)

b)

wavelength = planck's constant/(momentum/velocity)

c)

wavelength = planck's constant*(momentum*velocity)

d)

E = hf

2.

What is the evidence for constructive interference?

a)

Bright and dark fringes in Diffraction

b)

Bright fringes in reflection

c)

Total internal reflection

3.

When electrons are accelerated in a ( (a)   ) and are passed through a screen, diffraction patterns can be observed.

4.

What was the experimental outcome of Davisson-Germer's experiment?

a)

165 m

b)

167 nm

c)

165 nm

d)

167 m

5.

What is diffraction?

a)

Diffraction is the spreading of waves around obstacles.

b)

Diffraction takes place with sound and with electromagnetic radiation, such as light, X-rays, and gamma rays.

c)

Diffraction takes place with electrons, which show wavelike properties.

d)

Diffraction is a hoax

6.

Bonus Question: Who is the oldest member of 2020-2021 Year 13 Physics BST/STE?

a)

Jakub

b)

Salman

c)

Brennan

d)

Ana

e)

None of the above

7.

A transverse wave is ...

a)

A wave that oscillates perpendicular to the direction of movement

b)

A wave that oscillates parallel to the direction of movement

8.

POLL: What did you think of this quiz?

a)

Hate it

b)

Like it

c)

Love it

d)

Gotta have it!

9.

Why could De Broglie sub 'v' in for 'c'

a)

Real particles do not travel at the speed of light

b)

Real particles have less mass than non-real particles

c)

The Davisson Germer experiment explains this

d)

It made deriving the formula easier

10.

Where is the CERN particle accelerator?

a)

Germany

b)

Luxembourg

c)

France

d)

Switzerland

e)

Ukraine