Practice Young’s Interference Of Light Waves And Young's Experiment (10.5) - WAVE OPTICS

Practice: YOUNG’S INTERFERENCE OF LIGHT WAVES AND YOUNG'S EXPERIMENT

Lesson 10.5WAVE OPTICS

Practise this section

8 questions

Flashcard drill
2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is the condition for constructive interference in Young's experiment?
Show hintHide hint
Think about how many whole waves fit into the path difference.
Question 2.
Describe what happens to light when it passes through two closely spaced pinholes.
Show hintHide hint
What do we call the pattern from overlapping waves?
3Question 3.
What happens in constructive interference?
- Waves cancel each other
- Waves reinforce each other
- Waves change direction
Show hintHide hint
Think about whether the waves are adding to or canceling each other.
4Question 4.
True or False: Coherent sources have a variable phase difference.
- True
- False
Show hintHide hint
Recall the definition of coherence.
Question 5.
A monochromatic light source produces interference on a screen 1.2m away from the pinholes. If the distance between the pinholes is 0.4mm and the fifth bright fringe is 3cm from the central maximum, calculate the wavelength.
Show hintHide hint
Convert units as necessary to ensure consistency.
Question 6.
In a set of experiments with red and green lasers producing interference, the red laser (λ=650 nm) shows fringes spaced wider apart compared to the green (λ=532 nm). Explain why.
Show hintHide hint
Consider how wavelength affects the calculation of fringe positions.

4 more questions in this section. Enroll free to practise them all.