Physics Previous Year Questions 2026 | SSC CPO

Physics - MOST IMPORTANT SSC CPO Previous Year Questions

Practice real questions from previous year exams of SSC CPO.

📘 Units and Dimensions📚 Fundamental and Supplementary Units of Measurement
Q1

What is the unit of the Physical quantity Entropy?

🎯 (SSC CPO (Tier-I) 2016)
📘 Units and Dimensions📚 Fundamental and Supplementary Units of Measurement
Q2

'Mho' is the unit of of a substance.

🎯 SSC CPO-SI 25/11/2020 (Shift-I)
📘 Units and Dimensions📚 Fundamental and Supplementary Units of Measurement
Q3

The SI (International system of units) unit of length is

🎯 SSC CPO (SI)-13/12/2019 (Shift-I)
📘 Units and Dimensions📚 Important abbreviations- deci, centi, mili, etc.
Q4

'Femto' means ten raised to the power of

🎯 SSC CPO-SI 23/11/2020 (Shift-I)
📘 Units and Dimensions📚 Conversion from one unit to other
Q5

One horsepower is approximately equal to....... Watts.

🎯 SSC CPO-SI 24/11/2020 (Shift-I)
📘 Force and Motion📚 Circular Motion and related terms (angular displacement, time period, etc.)
Q6

Which of the following characteristics is not true for the Uniform circular motion ?

🎯 SSC CPO (SI)-12/12/2019 (Shift-II)
📘 Gravitation📚 Gravitational Force - Basics
Q7

Which of the following is an example of an action at a distance force?

🎯 SSC CPO-SI 23/11/2020 (Shift-II)
📘 Gravitation📚 Newton's Law of Gravitation
Q8

As per Newton's law of gravitation, the force between two bodies is

🎯 SSC CPO (SI)-12/12/2019 (Shift-II)
📘 Gravitation📚 Weight of an object at different places
Q9

The weight of a body at the centre of earth is :

🎯 (SSC CPO (TIER-1) 2016)
📘 Gravitation📚 Kepler's Law - III: The law of periods
Q10

The period of revolution of a certain planet in an orbit of radius R is T. Its period of revolution in an orbit of radius 4R will be:

🎯 (SSC CPO (TIER-1) 2016)
📘 Gravitation📚 Satellite and types - Natural and Artificial
Q11

Once a Satellite is placed in orbit, then the only force that controlling its speed is the force of

🎯 SSC CPO (SI)-12/12/2019 (Shift-II)
📘 Fluid Mechanics📚 Capillarity and examples
Q12

The Principle involved in the absorption of water by soil is :

🎯 (SSC CPO (TIER-1) 2016)
📘 Fluid Mechanics📚 Archimedes Principle and its applications
Q13

Lactometer (Used to determine the purity of milk samples) and hydrometers (used to determine the density of liquids) are based on the principle of -

🎯 SSC CPO-12/12/2019 (Shift-I)
📘 Fluid Mechanics📚 Archimedes Principle and its applications
Q14

Which of the following is not one of the great Paradigms of biology?

🎯 SSC CPO-13/03/2019 (Shift-I)
📘 Ideal Gas Law📚 Misc
Q15

If the pressure in a closed vessel is reduced by drawing out some gas, the mean free path of the gas molecules will.

🎯 (SSC CPO (TIER-1) 2016)
📘 Thermal Properties of Matter📚 Temperature Scales- Kelvin, Celsius, etc.
Q16

30° Celsius = kelvin

🎯 SSC CPO-SI 25/11/2020 (Shift-I)
📘 Thermal Properties of Matter📚 Newton's Law of Cooling
Q17

When temperature difference between liquid and its surroundings is doubled, the rate of loss of heat will :

🎯 (SSC CPO (TIER-1) 2016)
📘 Thermal Properties of Matter📚 Temperature Scales- Kelvin, Celsius, etc.
Q18

The difference in temperature between two bodies is 30 degree centigrade. What is the difference in degree Fahrenheit?

🎯 SSC CPO-SI 23/11/2020 (Shift-I)
📘 Thermal Properties of Matter📚 Modes of Heat Transfer- Conduction, Convection and Radiation
Q19

The sun provides heat the earth through :

🎯 SSC CPO-SI – 09/12/2019 (Shift-II)
📘 Thermal Properties of Matter📚 Heat and its Units of Measurement
Q20

One calorie of heat energy is equivalent to approximately joules of mechanical energy.

🎯 SSC CPO-SI 25/11/2020 (Shift-I)