ICSE Class 10 Wave Optics — Mock Test

Free online mock test for Wave Optics (ICSE Class 10 Physics) — 80 competency-based questions with instant marking. Try the samples below, then take the full test free.

Sample questions

1. 1.In a glass prism, which colour travels slower and why?
   • A.Violet, because the refractive index of glass is greater for violet light
   • B.Red, because glass has a higher index for red
   • C.Both travel at the same speed in glass
   • D.Red, because red has a longer wavelength
2. 2.In a single-slit diffraction pattern, which feature distinguishes it from a double-slit interference pattern?
   • A.It has a single broad central maximum twice as wide as the others
   • B.All maxima are equally bright and equally wide
   • C.It has no central maximum
   • D.The fringes are exactly equally spaced and equally intense
3. 3.In a double-slit experiment (d = 0.5 mm, D = 1.0 m, wavelength 500 nm), the distance of the second dark fringe from the central maximum is:
   • A.0.5 mm
   • B.1.0 mm
   • C.1.5 mm
   • D.2.0 mm
4. 4.Assertion (A): In Young's experiment the two slits S1 and S2 act as coherent sources. Reason (R): S1 and S2 are illuminated by light derived from a single source S.
   • 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
5. 5.In Huygens construction, to find the wavefront after time t in a medium of wave speed v, spheres are drawn of radius:
   • A.vt
   • B.v/t
   • C.vt squared
   • D.t/v