Wazari Exam (Iraq Baccalaureate) - Scientific Branch · Physics
Modern physics
7 practice questions, each with the answer and an explanation.
Practise Modern physics now
Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.
All 7 questions
- Photons of energy 6 eV fall on a metal whose work function is 4 eV. What is the maximum kinetic energy of the emitted electrons?
- The de Broglie wavelength of a particle is . If the momentum of a particle is multiplied by 2, what happens to its wavelength?
- The de Broglie wavelength of a particle is . If the momentum of a particle is multiplied by 3, what happens to its wavelength?
- The de Broglie wavelength of a particle is . If the momentum of a particle is multiplied by 5, what happens to its wavelength?
- A nucleus has proton number 92 and nucleon number 238. How many neutrons does it contain?
- A nucleus has proton number 88 and nucleon number 226. How many neutrons does it contain?
- A nucleus has proton number 27 and nucleon number 60. How many neutrons does it contain?
Keep practising
More Wazari Exam (Iraq Baccalaureate) - Scientific Branch topics
- Calculus, Complex Numbers, Vectors and Probability29 questions
- Electricity, Magnetism, Optics and Modern Physics28 questions
- Equilibrium, Acids, Electrochemistry and Organic Chemistry28 questions
- Genetics, Molecular Biology, Physiology and Immunity28 questions
- Genetics and molecular biology28 questions
- Electricity and magnetism23 questions
- Acids, equilibrium and electrochemistry22 questions
- Human physiology and ecology21 questions