Waves and the Nature of Light Random Retrieval

Waves & the Nature of Light Random Retrieval

This quiz contains all the questions in the Waves & the Nature of Light section. The website will pick 10 questions at random.

1 / 10

Photons are an example of light as a __________.

Wave

Particle

2 / 10

The equation E = hf is an example of light as a __________.

Wave

Particle

3 / 10

Hot gases produce ___________.

Line Absorption Spectra.

Line Emission Spectra.

Band Absorption Spectra.

Band Emission Spectra.

4 / 10

A focal point for a concave lens is 150 mm away from the lens. An object is then placed 7.5 cm from the lens. Calculate the distance the image is from the lens.

7.89 mm

78.94 mm

18.75 mm

187.5 mm

5 / 10

This image shows a cross section of fibre optic cable. Select why the ray enters the cladding.

The angle of incidence is greater than the critical angle

The angle of incidence is less than the critical angle

The angle of refraction is greater than the critical angle

The angle of refraction is less than the critical angle

6 / 10

Two points on a wave have a phase difference of 1080°, are they in phase?

Yes

No - they are out of phase

No - they are exactly out of phase

7 / 10

Select the correct pair of conditions necessary for sources of waves to be coherent.

Same wavelength with a phase relationship a time period apart.

Same frequency with a phase relationship a time period apart.

Same wavelength with a constant phase relationship T/2 apart.

Same frequency with a constant phase relationship

8 / 10

A sound wave of wavelength 0.332 m has a time period of 10^-3s. If the time period is decreased to 10^-4 s. Calculate the wavelength of the new wave.

0.332 cm

3.32 cm

33.2 cm

333 cm

9 / 10

Calculate the speed of a wave with a frequency of 10 kHz and a wavelength of 2 m.

0.2 ms^-1

5 ms^-1

20 ms^-1

20 kms^-1

10 / 10

Select the wave with the highest frequency.

A

B

C

D

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