U5.5 – Diffraction

3

Diffraction

1 / 10

Diffraction is an example of light behaving as a __________.

2 / 10

The greatest amount of diffraction occurs when _________.

3 / 10

A diffraction grating has 350 slits per metre, what the slit spacing, d?

4 / 10

Reducing the width of a single slit that has monochromatic light passing through affects the central maximum, how?

5 / 10

Reducing the width of a single slit that has monochromatic light passing through affects the central maximum, how?

6 / 10

Calculate the wavelength of a monochromatic light incident on a diffraction grating of 2.67x106 lines per metre with an angle of 17° to the first order maxima.

7 / 10

A blue laser of wavelength 480 nm is incident on a diffraction grating of 3.00x106 lines per metre, how many order maxima (excluding 0 order) can be seen?

8 / 10

Where is the brightest maxima located?

9 / 10

Light of wavelength 7.12x10-7 m is incident on a diffraction grating with a line spacing of 1.89x10-6 m. Calculate the angle from the normal to the 2nd order maximum.

10 / 10

Remember Young's slits from GCSE? He's back! Incident monochromatic light of 0.43 μm is shone on a double slit of separation of 0.26 mm. If the screen is 42 cm away from the grating, calculate the fringe width.

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