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Thursday, 30 July 2026
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Physics Past Questions and Answers

Physics Questions

Question 46:
Which of the following is true for the image formed by a convex mirror? i. the image is always virtual ii. the image is always erect iii. the image lies between pole and focus iv. the image is never magnified v. the focus length is negative
  • A I only
  • B I and ii only
  • C Ii and iii only
  • D I, ii, iii and iv only
  • E All five
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Question 47:
A string is sustaining a stationary wave when
  • A The frequency of the wave is not proportional to the wavelength of the wave
  • B The amplitude of vibration is always zero
  • C Two equal waves are travelling in opposite directions
  • D The waves are longitudinal
  • E The frequency is directly proportional to the length of the string
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Question 48:
For the correction of myopic defects in the human eye we require
  • A A convex lens
  • B A concave lens
  • C A combination of concave and convex lenses
  • D A prism
  • E A concave mirror
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Question 49:
Of the following which is different from the other?
  • A X-rays
  • B Gamma-rays
  • C Cathode rays
  • D Ultra violet rays
  • E Infrared rays
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Question 50:
The net charge on the atom is zero because
  • A The electrons and the protons that are charged are in the nucleus
  • B The total charge on the electrons is equal to the total charge on the protons
  • C The neutrons from a shield around the charged protons
  • D The number of electrons in an atom is half the number of protons
  • E A and B above
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