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Sunday, 03 May 2026
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Physics Past Questions and Answers

Jamb Physics Questions

Question 231:
A hydrometer is an instrument for measuring the
  • A Depth of water in a vessel
  • B Relative density of a liquid by the method of flotation
  • C Relative dendity of a liquid by finding the apparent loss in weight
  • D Relative humidity of the air
  • E Atmospheric pressure when the air is humid
View Answer & Explanation
Question 232:
The point beyond which a stretched spring does not return to its original length is called the
  • A Breaking point
  • B Elastic limit
  • C Spring constant
  • D Elasticity point
  • E Release point
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Question 233:
The point beyond which a stretched spring does not return to its original length is called the
  • A Breaking point
  • B Elastic limit
  • C Spring constant
  • D Elasticity point
  • E Release point
View Answer & Explanation
Question 234:
A 10g mass placed on the pan of a spring balance causes an extension of 5cm. If a 15g mass is placed on the pan of the same spring balance, the extension is
  • A 3.3cm
  • B 6.5cm
  • C 7.5cm
  • D 10.8cm
  • E 15.0cm
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Question 235:
In a radioactive series
\( ^{235} _{92}L \to ^{235} _{92}M \to ^{231} _{90}N \to ^{231} _{91}\phi \)
The particles emitted are respectively
  • A \( \beta , \beta , \alpha \)
  • B \( \alpha , \gamma , \beta \)
  • C \( \gamma , \alpha , \beta \)
  • D \( \alpha , \alpha , \beta \)
  • E \( \beta , \alpha , \beta \)
View Answer & Explanation