Past Paper MCQs Waves & Radiation

 
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?

  
  A. I only
  B. II only
  C. I and III only
  D. II and III only
  E. I, II and III
   
 
 

 
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?

  

  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.
A student makes the following statements about the decay series.


I Nuclides X2 and X3 contain the same number of protons.
II Nuclide X1 decays into nuclide X2 by emitting an alpha particle.
III Nuclide X3 decays into nuclide X4 by emitting a beta particle.


Which of these statements is/are correct?

  

 
  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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for later review
 
 

 
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?
  
  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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Flag this question
for later review
 
 

 
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?

  
  A.  

  B.  

 
  C.  

 
  D.  

 
  E.  

 
   
 
 

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