Mixed Worksheet for Chapter 10 - Wave Optics
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Sample questions
Explain why diffraction of sound is more common in daily experience than that of light.
(i) Two thin converging lenses of focal length \(f_{1}\) and \(f_{2}\) are placed coaxially in contact. Derive expression for the focal length of the combination.
(ii) A beam of coherent light of wavelength 550 nm is incident normal to the plane of a pair of two slits \(S_{1}\) and \(S_{2}\) each of width 1·2 × \(10^{−6}\) m separated by 1·1 mm. Dark and bright fringes are observed on a screen 2·2 m away from the plane of the slits. Calculate :
(I) fringe width.
(II) distance of the second dark fringe from the central maximum.
(III) what will happen when the entire apparatus is immersed in water.
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About this Mixed Worksheet
This mixed worksheet is designed for Class 12 Physics practice from Chapter 10 - Wave Optics. It uses the question types selected for this worksheet and keeps the preview representative of the complete set.
Solve the questions first, then use the separate answer key to check the method and identify concepts that need revision. For more practice, continue with the chapter quiz or another worksheet below.
Frequently asked questions
How many questions are in this mixed worksheet?
The complete worksheet contains 10 questions. This page shows a fixed preview of 2 questions.
Does the worksheet include answers?
Yes. The complete download includes a questions PDF and a separate answer key PDF.
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No. The preview is fixed and is the same for every visitor. The downloaded worksheet is generated separately.
How should I use this mixed worksheet?
Attempt the questions without the answer key, check each solution afterwards, and revise the linked chapter concepts before trying another worksheet or quiz.