KERALA PSC / PHYSICS / PREVIOUS QUESTION PAPERS / SOLVED QUESTION PAPERS / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY / NOTES

 

KERALA PSC / PHYSICS / PREVIOUS QUESTION PAPERS / SOLVED QUESTION PAPERS / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY / NOTES

KERALA PSC / PHYSICS / PREVIOUS QUESTION PAPERS / SOLVED QUESTION PAPERS / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY / NOTES

·      Magnetism at the centre of the bar magnet is……

Zero

 

·      Fuses are connected in …... to the live wire

Series

 

·      When seen in blue light a red rose will appear as ………

Black

 

·      If the length, number of turns and flowing current are all doubled in a current carrying solenoid the magnetic field would ……

Be doubled

 

·      In astronomical telescope objective lens is

Convex lens of large focal length and large aperture

 

·      A car engine is

Internal combustion engine

 

·      Filament of electric bulb is of

Tungsten

 

·      Electric motor converts

Electrical energy into mechanical energy

 

·      …… is used to determine purity of milk

Lactometer

 

·      Pendulum clocks will have a …… in time period during summer

Decrease

 

·      The focal length of the objective of microscope is

Less than the focal length of eyepiece

 

·      Plane mirrors always from ……

Virtual and erect image

 

·      The shape of rain drop is spherical due to

Surface tension

 

·      A steam engine converts heat energy into

Mechanical energy

 

·      The absorption of ink by blotting paper involves

Capillary action

 

·      Decibel is a unit for measuring the intensity of

Sound

 

·      Relative humidity is measured by

Hygrometer

 

·      A supersonic plane flies at the speed

Greater than the speed of the sound

 

·      A unit for expressing astronomical distances is

Light year

 

·      In desert, clouds do not precipitate because of

Low humidity

 

·      Cloudy nights are warmer because

Clouds prevent radiation of heat from the ground into the air

 

·      The best conductor of heat among liquids is

Mercury

 

·      During summer, we feel comfortable under a fan because it

Sets the air in motion, thereby increasing the evaporation

 

·      Fish can survive inside frozen lake because

Water near the bottom does not freeze

 

·      A person climbing a hill bends forward in order to

Increase stability

 

·      When a ship enters a sea from a river

It rises a little

 

·      Winding a watch is actually the process of storing

Potential energy

 

·      An apparatus used for locating submerged objects is known as

Sonar

 

·       The path followed by a body thrown horizontally from the top of a tower is

Parabolic

 

·      In a camera ……. are used

Convex lens

 

·      Who discovered that white light consists of seven colours?

Newton

 

·      The speed of sound will be maximum in

Steel

 

·      Alternating current can be produced by

Generator

 

·      The nearest planet to the earth is

Venus

 

·      We get heat from the sun by

Radiation

 

·      The sun appears deep orange-red before it sets because

Its light has to traverse a thicker atmosphere, therefore, the other colours get scattered and do not reach us

 

·      When a wave enters from one medium into another medium then …. change

Wavelength and velocity

 

·      Acceleration due to gravity is maximum

On the poles of the earth

 

·      Dark (Fraunhofer) lines are seen in the spectrum of the sun. These are due to absorption in

Outer layers of the sun

 

·      Light year is a unit of

Distance

 

·      The absolute zero is the temperature at which

Molecular motion ceases

 

·      Melting point of ice

Decreases with increase in pressure

 

·      The redshift observed in the spectrum of a galaxy shows that

The universe is expanding

 

·      Pitch of sound depends upon its

Frequency

 

KERALA PSC / PHYSICS / PREVIOUS QUESTION PAPERS / SOLVED QUESTION PAPERS / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY / NOTES