ICSE Class 10 Nuclei — Mock Test

Free online mock test for Nuclei (ICSE Class 10 Physics) — 72 competency-based questions with instant marking. Try the samples below, then take the full test free.

Sample questions

1. 1.The nuclei of hydrogen (H-1), deuterium (H-2) and tritium (H-3) all contain one proton. Deuterium and tritium differ from ordinary hydrogen because they additionally contain:
   • A.Extra electrons
   • B.One and two neutrons respectively
   • C.One and two extra protons respectively
   • D.Positrons
2. 2.Assertion (A): Heavy stable nuclei have more neutrons than protons. Reason (R): Extra neutrons are needed to overcome the Coulomb repulsion among the protons.
   • 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
3. 3.For helium-4, mH = 1.007825 u, mn = 1.008665 u and m(He-4) = 4.002603 u. The binding energy per nucleon is about (1 u = 931.5 MeV):
   • A.7.07 MeV
   • B.28.3 MeV
   • C.3.54 MeV
   • D.14.1 MeV
4. 4.Starting from R = R0 A^(1/3), the nuclear matter density (mass per unit volume, taking nucleon mass roughly constant) is found to be:
   • A.Proportional to A
   • B.Proportional to A^(2/3)
   • C.Nearly constant, independent of A
   • D.Inversely proportional to A
5. 5.Using R = R0 A^(1/3) with R0 = 1.2 fm, the radius of an aluminium nucleus (A = 27) is:
   • A.2.4 fm
   • B.3.6 fm
   • C.4.8 fm
   • D.7.2 fm