DP Physics (last assessment 2024)

Question 17N.2.HL.TZ0.a.iii

Date	November 2017	Marks available	[Maximum mark: 2]	Reference code	17N.2.HL.TZ0.a.iii
Level	HL	Paper	2	Time zone	TZ0
Command term	Calculate	Question number	a.iii	Adapted from	N/A

a.iii.

[Maximum mark: 2]

17N.2.HL.TZ0.a.iii

Yellow light from a sodium lamp of wavelength 590 nm is incident at normal incidence on a double slit. The resulting interference pattern is observed on a screen. The intensity of the pattern on the screen is shown.

Calculate the separation of the two slits.

[2]

Markscheme

use of s = $\frac{{\lambda D}}{d}$ with 3 fringes « $\frac{{590 \times {{10}^{ - 9}} \times 7.0}}{{4.1 \times {{10}^{ - 2}}}}$ »

3.0 x 10^–4 «m»

Allow ECF.

Syllabus sections

Additional higher level (AHL)

Additional higher level (AHL) » Topic 9: Wave phenomena » 9.2 – Single-slit diffraction

Additional higher level (AHL) » Topic 9: Wave phenomena

Question 17N.2.HL.TZ0.a.iii

Select a Test

Syllabus sections

Confirm action