Sensible values – waves & quantum – with answers

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Presentation transcript:

Sensible values – waves & quantum – with answers David Bailey © Class Leading Ltd. 2013 Permission granted for non-commercial educational use provided that this copyright notice is included. 07/08/2019

What is a sensible value for the wavelength of visible light? A = 5 x 10-14 m B = 5 x 10-7 m C = 5 x 107 m D = 5 x 1014 m …and why do you think that? 1 © Class Leading Ltd. 2013 Permission granted for non-commercial educational use provided that this copyright notice is included.

What is a sensible value for the frequency of visible light? A = 6 x 10-14 Hz B = 6 x 10-7 Hz C = 6 x 107 Hz D = 6 x 1014 Hz …and why do you think that? 2 © Class Leading Ltd. 2013 Permission granted for non-commercial educational use provided that this copyright notice is included.

What is a sensible value for the speed of a fast moving electron? A = 2 x 10-10 ms-1 B = 2 x 10-6 ms-1 C = 2 x 106 ms-1 D = 2 x 1010 ms-1 …and why do you think that? 3 © Class Leading Ltd. 2013 Permission granted for non-commercial educational use provided that this copyright notice is included.

…and why do you think that? What is a sensible value for a de Broglie wavelength of a fast moving muon? A = 1 x 10-54 m B = 1 x 10-12 m C = 1 x 1012 m D = 1 x 1054 m …and why do you think that? 4 © Class Leading Ltd. 2013 Permission granted for non-commercial educational use provided that this copyright notice is included.

…and why do you think that? What is a sensible value for the ionisation energy to remove one electron from an atom? A = 4 x 10-17 J B = 4 x 10-26 J C = 1 x 1026 J D = 1 x 1017 J …and why do you think that? 5 © Class Leading Ltd. 2013 Permission granted for non-commercial educational use provided that this copyright notice is included.

What is a sensible value for the refractive index of glass? …and why do you think that? 6 © Class Leading Ltd. 2013 Permission granted for non-commercial educational use provided that this copyright notice is included.