ICSE Class 10 Wave Optics — Mock Test (2027)
Free online mock test for Wave Optics (ICSE Class 10 Physics) — 80 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Wave Optics chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.Assertion (A): In Young's double-slit experiment the bright and dark fringes are equally spaced. Reason (R): The fringe positions are given by x = n lambda D / d and x = (n + 1/2) lambda D / d.
- A.Both A and R are true and R is the correct explanation of A
- B.Both A and R are true but R is NOT the correct explanation of A
- C.A is true but R is false
- D.A is false but R is true
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2.Light of wavelength 589 nm in air enters water (n = 1.33). The wavelength of the refracted light in water is closest to:
- A.443 nm
- B.589 nm
- C.783 nm
- D.295 nm
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3.The shape of the wavefront for light diverging from a point source is:
- A.Spherical
- B.Plane
- C.Cylindrical
- D.Elliptical
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4.A plane wave passes through a thin prism. Why does the emerging wavefront tilt?
- A.The lower part travels through more glass and is delayed because the speed is less in glass
- B.The upper part speeds up in glass
- C.The frequency changes inside the prism
- D.The wave is reflected at the back face
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5.At a point the path difference between two coherent waves equals 2.5 lambda. The interference there is:
- A.Destructive (zero intensity)
- B.Constructive (maximum intensity)
- C.Half the maximum intensity
- D.Independent of path difference
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