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CHAPTER 10: WAVE PROPERTIES OF LIGHT

Total questions: 13

Worksheet time: 4mins

Name
Class
Date
1.
The wave-particle duality of light describes light as...
a)
a wave only
b)
a particle only
c)
both a wave and a particle
d)
neither a wave nor a particle
2.
The energy of electromagnetic waves comes in pulses called...
a)
atoms.
b)
electrons.
c)
pulsars.
d)
photons.
3.
A wave with a large wavelength will have a ______ frequency and _____ energy
a)
high, low
b)
high, high
c)
low, high
d)
low, low
4.

A ____ is a discrete, quantized bundle of energy

a)

Photoelectric effect

b)

Photon

c)

Quantized

d)

Proton

5.
1 eV is equal to
a)
1.6 × 10-19 J
b)
2.0 × 10-20 J
c)
3 J
d)
4 J
6.

Wave -particle duality is supported by...

a)

electrons behaving as particles with ordinary matter

b)

electrons behaving as waves when travelling through space

c)

the photo electric effect

d)

all of the above

7.

De Broglie equation

a)

relates the momentum of a mass to its wavelength

b)

relates the energy of a mass to its wavelength

c)

relates the frequency of a mass to its wavelength

d)

relates the work function of a mass to its wavelength

8.
The de Broglie wave equation showed that the wavelength of any moving object is equal to
a)
m/hν
b)
h/mv
c)
v/mh
d)
hm/v
9.

Which of the following is NOT the unit of energy

a)

MeV

b)

J

c)

eV

d)

V

10.

Which of the following is TRUE about photon

a)

Particle with a negative charge

b)

Quantum of electromagnetic wave

c)

Particle with a positive charge

d)

electron produced when light is incident on a metal surface

11.

All these are the assumptions made by Planck EXCEPT

a)

EM radiation is in discrete packets of energy

b)

Energy of the EM radiation is continuously

c)

Energy of EM radiation is quantised

d)

The energy size of the radiation depends on its frequency

12.

The quantum of the energy E for radiation is

a)

inversely proportional to its wavelength

b)

proportional to its wavelength

c)

inversely proportional to its frequency

d)

proportional to its intensity

13.

The following statement are correct about Electron Microscope EXCEPT

a)

very short wavelength

b)

high resolving power

c)

there are 3 types of them