How it works Features Exams FAQ Pricing

EN

हिं

Physics - MOST IMPORTANT Jharkhand PCS Previous Year Questions

Practice real questions from previous year exams of Jharkhand PCS.

📘 Force and Motion📚 Force and its types

Q1

The separation of cream from milk by churning is due to:

🎯 Jharkhand PCS (Pre.) G.S. IInd, 2013

A.

gravitational force

B.

cohesive force

C.

centrifugal force

D.

None of the above

📘 Fluid Mechanics📚 Viscosity

Q2

The floating of cloud in atmosphere is due to the reason of?

🎯 Jharkhand PCS (Pre) G.S. 2008

A.

Temperature

B.

Pressure

C.

Distance from the sea

D.

Viscosity

📘 Fluid Mechanics📚 Pascal's Principle

Q3

Hydraulic break of automobile works on the principle of-

🎯 Jharkhand PCS (Pre) G.S. 2003

A.

Archimedes principle

B.

Newton law of motion

C.

Bernoulli's principle

D.

Pascal's law

📘 Fluid Mechanics📚 Pascal's Principle

Q4

Hydraulic brake of automobile works on the principle of-

🎯 Jharkhand PCS (Pre) G.S. 2003

A.

Archimedes principle

B.

Newton law of motion

C.

Bernoulli's principle

D.

Pascal's law

📘 Fluid Mechanics📚 Pascal's Principle

Q5

Hydraulic break of automobile works on the principle of:

🎯 Jharkhand PCS (Pre) G.S. 2003

A.

Archimedes principle

B.

Newton law of motion

C.

Bernoulli's principle

D.

Pascal's law

📘 Wave📚 Non-mechanical Wave: Electromagnetic wave- Radio waves

Q6

The Process of superposition of any information on radio waves is named as:

🎯 Jharkhand PCS (Pre) 2024-I

A.

Transmission

B.

Modulation

C.

Demodulation

D.

Reception

📘 Sound📚 Characteristics of Sound waves- wavelength, time period, etc.

Q7

Which of the following cannot travel in vacuum?

🎯 Jharkhand PCS (Pre) 2024-I

A.

Light

B.

Heat

C.

Sound

D.

Electromagnetic waves

📘 Sound📚 Echo

Q8

Which of the following is a cause of echo?

🎯 Jharkhand PCS (Pre) 2024-I

A.

Absorption of sound

B.

Transmission of sound

C.

Reflection of sound

D.

Refraction of sound

📘 Sound📚 Characteristics of Sound waves- wavelength, time period, etc.

Q9

What do we call the distance between two consecutive compressions of a sound wave?

🎯 Jharkhand PCS (Pre) 2024-I

A.

Wave number

B.

Frequency

C.

Wavelength

D.

Amplitude

📘 Thermal Properties of Matter📚 Anomalous Expansion of Water

Q10

When a bottle is filled with water and is allowed to freeze then bottle breaks down, because -

🎯 Jharkhand PCS (Pre) G.S. 2006

A.

Water expands upon freezing

B.

Bottle shrinks at freezing point

C.

The temperature outside the bottle is higher than inside

D.

Water expands on heating

📘 Thermal Properties of Matter📚 Humidity

Q11

If the temperature of air increases, then its ability to absorb water vapour:

🎯 Jharkhand PCS (Pre) G.S. 2003

A.

decreases

B.

increases

C.

first decreases then increases

D.

did not affect

📘 Units and Dimensions📚 Fundamental and Supplementary Units of Measurement

Q12

Light year is a unit of:

🎯 Jharkhand PCS (Pre) 2024-I

A.

Distance

B.

Time

C.

Energy

D.

Intensity of light

📘 Modern Physics📚 Light Emitting Diode

Q13

Light Emitting Diode (LED) work on the principle of:

🎯 7th Jharkhand PCS (PRE) 2021 (Paper 1)

A.

Thermionic emission

B.

Photoelectric code

C.

Electroluminescence

D.

Laser

📘 Units and Dimensions📚 Fundamental and Supplementary Units of Measurement

Q14

A light ....... year is the-

🎯 Jharkhand PCS (Pre) G.S. IInd 2013

A.

Year which had maximum sunlight

B.

Year in which workload was very light

C.

Distance travelled by light in one year

D.

Mean distance between Sun and Earth

📘 Sound📚 Features of Sound- Loudness, Intensity, Pitch, Quality, etc.

Q15

The pitch of the voice of women is in general:

🎯 Jharkhand PCS (Pre) G.S. 2006

A.

higher than that of men

B.

marginally lower than that of men

C.

much lower than that of men

D.

the same as that of men

📘 Thermal Properties of Matter📚 Temperature Scales- Kelvin, Celsius, etc.

Q16

The normal body temperature on the Celsius scale will be:

🎯 Jharkhand PCS (Pre.) G.S. IInd, 2013

A.

31°C

B.

98.4°C

C.

36.9°C

D.

31.5°C

📘 Thermal Properties of Matter📚 Temperature Scales- Kelvin, Celsius, etc.

Q17

What is absolute zero temperature?

🎯 Jharkhand PCS (Pre.) G.S. 2010

A.

The starting point of any temperature scale

B.

Theoretically the lowest possible temperature

C.

The temperature at which the vapour of any liquid substance are Freezes

D.

The temperature at which all the material are in vapour form

📘 Light and Optics📚 Refraction and related Terminology

Q18

The velocity of light in vacuum is approximately:

🎯 Jharkhand PCS (Pre) G.S. 2003

A.

$3 \times 10^{10}$ m/s

B.

$3 \times 10^8$ m/s

C.

$3 \times 10^{10}$ km/s

D.

$3 \times 10^{10}$ light years

📘 Light and Optics📚 Refraction and related Terminology

Q19

The speed of light in air depends on,

🎯 7th Jharkhand PCS (PRE) 2021 (Paper 1)

A.

Density

B.

It is independent of pressure, temperature and density

C.

Temperature

D.

Pressure

📘 Light and Optics📚 Reflection of Light and Terminology involved

Q20

The colour of an opaque object is due to the colour it:

🎯 Jharkhand PCS (Pre) G.S. 2006

A.

Absorbs

B.

Refracts

C.

Reflects

D.

Scatters

🔐 Login to practice full set