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Thursday, 05 March 2026
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Physics Past Questions and Answers

Jamb Physics Questions

Question 26:
Dispersion occurs when white light passes through a glass prism because of the
  • A Different hidden colours in the glass
  • B Different speeds of the colour in the glass
  • C Defects in the glass
  • D High density of the glass
View Answer & Explanation
Question 27:
When a positively charged rod is brought nearer the cap of a positively charged electroscope, the leaves divergence will
  • A Be induced
  • B Converge
  • C Diverge
  • D Remain constant
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Question 28:
Power supply is transmitted at a very high voltage and low current in order to
  • A Make pass through the trasformers
  • B Increase the power supply
  • C Make it travel fast
  • D Prevent overheating of the coil
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Question 29:
A galvanometer with full-scale deflection of 10 mA is to be converted to a voltmeter with full-scale deflection of 5v. the resistance of the galvanometer is
  • A 1Ω
  • B 2Ω
  • C 5Ω
  • D 10Ω
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Question 30:
Two inductors of inductances 5 mll and 15 mll are connected in series and a current of 5A flows through them. the total energy stored in the inductor is
  • A 500.0J
  • B 250.0J
  • C 62.5J
  • D 50.0J
  • E No correct option
View Answer & Explanation