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Tuesday, 03 November 2026
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Physics Past Questions and Answers

Jamb 2009 Physics Questions

Question 21:
An object is placed 5 cm from the pole of a concave mirror. if the focal length of the mirror is 10 cm. what is the image distance?
  • A 10 cm in front of the mirror.
  • B 5 cm in front of the mirror
  • C 10 cm behind the mirror
  • D 5 cm behind the mirror
View Answer & Explanation
Question 22:
Calculate the position of an object placed in front of a convex mirror having focal length of 12 cm such that an image is formed 6 cm away from the mirror
  • A 4. 0 cm
  • B 3. 0 cm
  • C 12.0 cm
  • D 9.0 cm
View Answer & Explanation
Question 23:
If the refractive index of crown glass is 1.51, its critical angel is.
  • A 48.6°
  • B 22.5°
  • C 41.5°
  • D 45.0°
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Question 24:
When light passes through two media x and y of refraction indices 1.51 and 1.33 respectively, the speed of light in
  • A X is same as in y
  • B X and y is same as in vacuum
  • C X is higher than in y
  • D Y is higher than in x
View Answer & Explanation
Question 25:
The ability of the human eye to focus object on the retina is referred to as the power of
  • A Interference
  • B Diffraction
  • C Accomodation
  • D Superposition
View Answer & Explanation