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| 1. | Three students each make a statement about antiparticles. I An antiparticle has the same mass as its equivalent particle. II An antiparticle has the same charge as its equivalent particle. III Every elementary particle has a corresponding antiparticle. Which of the statements is/are correct? |
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A. | I only | |
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B. | II only | |
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C. | I and III only | |
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D. | II and III only | |
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E. | I, II and III | |
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| 2. | Ultraviolet radiation causes the emission of photoelectrons from a zinc plate. The irradiance of the ultraviolet radiation on the zinc plate is increased. Which row in the table shows the effect of this change?
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| A. | A | ||
| B. | B | ||
| C. | C | ||
| D. | D | ||
| E. | E | ||
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| 3. |
Part of a radioactive decay series is shown in the diagram. The symbols X1 to X5 represent nuclides in this series.
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| A. | I only | ||
| B. | II only | ||
| C. | I and III only | ||
| D. | II and III only | ||
| E. | I, II and III | ||
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| 4. | A student writes the following statements about electric fields. I There is a force on a charge in an electric field. II When an electric field is applied to a conductor, the free electric charges in the conductor move. III Work is done when a charge is moved in an electric field. Which of the statements is/are correct? |
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| A. | I only | |
| B. | II only | |
| C. | I and III only | |
| D. | II and III only | |
| E. | I, II and III | |
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| 5. | All particles exhibit wave properties. The momentum p of a particle is inversely proportional to its wavelength λ. Which of the following graphs shows the relationship between p and λ? |
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| A. |
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| B. |
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| C. |
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| D. |
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| E. |
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