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Saturday, 02 May 2026
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Physics Past Questions and Answers

Jamb Physics Questions

Question 381:
Which of the following statements is NOT correct?
  • A The average range of distinct vision for a normal eye is from the far distance (infinity) up to about 25cm in front of the eye
  • B Longsighted people have difficulty in making the eye lense sufficiently powerful to focus on nearby objects
  • C Shortsighted people cannot accommodate distant objects
  • D Longsighted people need diverging spectacle lenses
  • E A person with long sight has his eye-ball too short and the image of an object is therefore formed behind the retina
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Question 382:
Which of the following features is NOT a characteristic of natural radioactivity?
  • A Radioactivity is a nuclear phenomenon
  • B Radioactivity is exhibited only by elements of mass number greater than 206
  • C The radioactivity of an element is affected by electric and magnetic fields in the surroundings
  • D Radioactive substances emits three types of radiations, a-rays, \(\beta\)-rays and y-rays
  • E The radioactive element is transformed into a new element
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Question 383:
What is the number of neutrons in the Uranium isotope \(^{238}_{92}X\)?
  • A 92
  • B 146
  • C 238
  • D 330
  • E 119
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Question 384:
Normal atmospheric pressure at sea-level is 105Nm-2 and the acceleration due to gravity is approximately 10ms-1. If the atmosphere has a uniform density of 1kgm-3, its height is
  • A 100m
  • B 1000m
  • C 10 000m
  • D 100 000m
  • E 1000 000m
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Question 385:
In the Fig above, Current I passes through the combination, if the power dissipated in the 5 ohm resistor is 40W, then the power dissipated in the 10 ohm resistor is
  • A 10W
  • B 20W
  • C 40W
  • D 80
  • E 100W
View Answer & Explanation