ICSE Class 10 Light — Mock Test (2027)

Free online mock test for Light (ICSE Class 10 Physics) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.

Sample questions

1. 1.A convex lens has a focal length of 10 cm. Where will the image be formed if an object is placed 15 cm from the lens?
   • A.20 cm from the lens on the same side as the object
   • B.30 cm from the lens on the opposite side of the object
   • C.6 cm from the lens on the opposite side of the object
   • D.15 cm from the lens on the same side as the object
2. 2.Which lens forms an enlarged and upright image of an object, and where must the object be placed relative to the lens?
   • A.Concave lens; object beyond the focus.
   • B.Convex lens; object between the lens and focus.
   • C.Concave lens; object between the lens and focus.
   • D.Convex lens; object beyond the focus.
3. 3.Which lens has both the surfaces as concave?
   • a.plano-convex
   • b.plano-concave
   • c.bi-convex
   • d.bi-concave
4. 4.How is the sign (+ or -) of the power of a lens related to whether the lens is divergent or convergent?
   • A.A positive power indicates a convergent (convex) lens, and a negative power indicates a divergent (concave) lens.
   • B.A positive power indicates a divergent (concave) lens, and a negative power indicates a convergent (convex) lens.
   • C.The sign of the power has no relation to whether the lens is convergent or divergent.
   • D.A positive power indicates a lens that diverges light, while a negative power indicates no effect on light.
5. 5.A ray of light of wavelength 5400 Å suffers refraction from air to glass. Taking the refractive index of glass with respect to air (aμg) as 3/2, find the wavelength of light in glass.
   • A.3600 Å
   • B.8100 Å
   • C.2700 Å
   • D.5400 Å