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Measurements and Experimentation PHYSICS - Measurements and Experimentation

ICSE - STD 9 - PHYSICS (ICSE - English Medium). 145 questions in this chapter.

Question types

Measurements and Experimentation question types

145 questions across 6 question groups — pick any mix to generate a PHYSICS paper with step-by-step answer keys.

145
Questions
6
Question groups
5
Question types
Sample Questions

Measurements and Experimentation questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 3MCQ1 Mark
If the length of a simple pendulum is made one-fourth, then its time period becomes
  • A
    Four times
  • B
    One-fourth
  • C
    Double
  • ✓
    Half

Answer: D.

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Q 4MCQ1 Mark
The diameter of a thin wire can be measured by
  • A
    A vernier calipers
  • B
    A metre rule
  • ✓
    A screw gauge
  • D
    none of these

Answer: C.

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Q 5MCQ1 Mark
A microscope has its main scale with $20$ divisions in $1\ cm$ and vernier scale with $25$ divisions, the length of which is equal to the length of $24$ divisions of main scale. The least count of microscope is
  • ✓
    $0.002\ cm$
  • B
    $0.001\ cm$
  • C
    $0.02\ cm$
  • D
    $0.01\ cm$

Answer: A.

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Q 21[5 Mark Question Answer]5 Marks
How does the time period (T) of a simple pendulum depend on its length (l)? Draw a graph showing the variation of $T^2$ with l. How will you use this graph to determine the value of g (acceleration due to gravity)?
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Q 22[5 Mark Question Answer]5 Marks
How is the time period of a simple pendulum affected, if at all, in the following situations:
(a) The length is made four times.
(b) The acceleration due to gravity is reduced to one-fourth.
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Q 23[5 Mark Question Answer]5 Marks
A seconds pendulum is taken to a place where acceleration due to the gravity falls to one-fourth. How is the time period of the pendulum affected, if at all? Give reasons. What will be its new time period?
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Q 25[5 Mark Question Answer]5 Marks
In the vernier callipers, there are $10$ divisions on the vernier scale and $1 \ cm$ on the main scale is divided into $10$ parts. While measuring the length, the zero of the vernier lies just ahead of the $1.8 \ cm$ mark and the $4th$ division of vernier coincides with a main scale division.
(a) Find the length.
(b) If zero error of vernier callipers is -$0.02 cm,$
What is the correct length ?
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