MEDIUM
9th ICSE
IMPORTANT
Earn 100

A physical quantity is measured, and the result is expressed as nu, where u is the unit used and n is the numerical value. If the result is expressed in various units, then:

50% studentsanswered this correctly

Important Questions on Measurements & Experimentation

MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 1 - Measurements & Experimentation>CHALLENGERS>Q 3
The distance of a planet from the Earth is 11 light minutes. What is the distance in km?
EASY
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 1 - Measurements & Experimentation>CHALLENGERS>Q 4
Why length, mass and time are chosen as base quantities in mechanics?
EASY
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 1 - Measurements & Experimentation>CHALLENGERS>Q 5
A bus travels 110 km/h on an open highway. What is this speed in standard SI unit?
HARD
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 1 - Measurements & Experimentation>CHALLENGERS>Q 6
The mass of the Earth is 5.98×1024  kg. If the average mass of the atoms of the Earth is 40 u, then the number of atoms in the Earth is
HARD
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 1 - Measurements & Experimentation>CHALLENGERS>Q 7
A vernier callipers has 1 mm mark on the main scale. It has 20 equal divisions on the vernier scale which match with 16 main scale divisions. For this vernier callipers, the least count is
HARD
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 1 - Measurements & Experimentation>CHALLENGERS>Q 8

A circular scale of a screw gauge has 50 divisions and pitch 0.5 mm. Find the diameter of the sphere (main scale reading is 2)

Question Image

EASY
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 1 - Measurements & Experimentation>CHALLENGERS>Q 9
Which of the following phenomena can be used as a measure of time?
HARD
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 1 - Measurements & Experimentation>CHALLENGERS>Q 10
The length of a pendulum is decreased by 10⁒. What will be the change in its frequency?