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Physics Past Questions and Answers

Jamb 2001 Physics Questions

Question 41:
If ray travelling in air is incident on a transparent medium as shown in the diagram, the refractive index of the medium is given as
  • A Cosα / sinβ
  • B Sinα / sinβ
  • C Cosβ / sinα
  • D Sinβ / sinα
View Answer & Explanation
Question 42:
In the diagram above , the current I is
  • A <sup style='font-size: smaller;'>3</sup>/<sub style='font-size: smaller;'>8</sub>
  • B <sup style='font-size: smaller;'>9</sup>/<sub style='font-size: smaller;'>11</sub>
  • C <sup style='font-size: smaller;'>11</sup>/<sub style='font-size: smaller;'>9</sub>
  • D <sup style='font-size: smaller;'>8</sup>/<sub style='font-size: smaller;'>3</sub>
View Answer & Explanation
Question 43:
The diagram above shows two capacitors P and Q of capacitance 2μF and 4μF respectively connected to a d.c source. The ratio of energy stored in P to Q is
  • A 4:1
  • B 2:1
  • C 1:4
  • D 1:2
View Answer & Explanation
Question 44:
The diagram above shows the capacitors C1, C2 and C3 2μF, 6μF and 3μF respectively. The potential difference across C1, C2 and C3 respectively are
  • A 4V, 6V and 2V
  • B 2V, 6V and 4V
  • C 6V, 4V and 2V
  • D 6V, 2V and 4V
View Answer & Explanation
Question 45:
The diagram above shows a closed side 0.5m in a uniform electric field E in the direction shown by the arrows. What is the flux Φ for the box?
  • A 0.5 E
  • B 2.0 E
  • C 0.2 E
  • D 0.0 E
View Answer & Explanation