MEDIUM
12th Karnataka Board
IMPORTANT
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What do you mean by Coherent sources?

Important Questions on Wave Optics

MEDIUM
12th Karnataka Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 10 - Wave Optics>Exercise>Q 45
Two coherent monochromatic light beams of intensities I and 4I are superimposed. What will be the maximum and minimum possible intensities.
MEDIUM
12th Karnataka Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 10 - Wave Optics>Exercise>Q 46

In Young's Double slit experiment, what is the intensity at a point on screen where the two waves arrive having a phase difference of 

(i) 60°(ii) 90°and (iii) 120°. Assume that the intensities of each source is I0.

HARD
12th Karnataka Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 10 - Wave Optics>Exercise>Q 47
A soap film 5×10-5 cm thick is viewed at an angle of 35° to the normal. Find the wavelength of light in the visible spectrum which will be absent from reflected light (μ=1.33). Given wavelength range of the visible spectrum is 3900Å to 7800Å.
HARD
12th Karnataka Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 10 - Wave Optics>Exercise>Q 49
In Young's double slit experiment, deduce the condition for  constructive 
MEDIUM
12th Karnataka Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 10 - Wave Optics>Exercise>Q 50
Is the bright fringe in interference-pattern obtained by violating the Principle of conservation of energy ?
EASY
12th Karnataka Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 10 - Wave Optics>Exercise>Q 51
Can two independent monochromatic sources of light be coherent ? Explain.
HARD
12th Karnataka Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 10 - Wave Optics>Exercise>Q 52
What are coherent sources of light? Why are coherent sources required to obtain sustained interference patterns?