## The Chennai School Of banking

#### GENERAL SCIENCE Physics-01

Question No : 1

What is the minimum distance (in metres) required to hear an echo?
(1) 10
(2) 13
(3) 17
(4) 21

Question No : 2

What is the other name of Galileo’s law of falling bodies?
(1) Law of motion
(2) Newton’s first law
(3) Newton’s second law

(4) Newton’s third law

Question No : 3

Which phenomena shows the particle nature of light?
(1) Diffraction
(2) Interference
(3) Photoelectric effect

(4) Polarisation

Question No : 4

At what temperature (in degree celsius), the numerical values on Celsius and Fahrenheit scales become equal?
(1) -40
(2) 40
(3) 273
(4) -273

Question No : 5

During uniform motion of an object along a straight line, the _____ remains constant with time.
(1) Time
(2) Velocity
(3) Acceleration
(4) Distance

Question No : 6

The motion of a freely falling body is an example of _____ motion.
(1) Uniformly accelerated
(2) Non-uniformly accelerated
(3) Constant velocity
(4) Constant speed

Question No : 7

Stars twinkle but planets do not twinkle because
(1) They emit light of a constant intensity
(2) Their distance from the earth does not change with time
(3) They are very far away from the earth resulting in decrease in intensity of light
(4) They are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable.

Question No : 8

Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules is
(1) Conduction
(2) Convection
(4) Both conduction and convection

Question No : 9

In which form is the supplied heat energy stored during change in temperature of substance?
(1) Heat energy
(2) Kinetic energy
(3) Potential energy
(4) Both kinetic and potential energy

Question No : 10

Which one among the following is not an electro-magnetic wave?
(1) X-Ray
(3) Cathode Ray
(4) Infrared Ray

Question No : 11

An anemometer measures which of the following
(1) Speed of light
(2) Speed of wind
(3) Speed of water current
(4) Speed of satellites

Question No : 12

An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is Newton’s
(1) First law
(2) Second law
(3) Third law
(4) Fourth law

Question No : 13

Sea seems blue due to
(1) Excess deepness
(2) Reflection of sky and scattering of light by the drops of water
(3) Blue colour of water
(4) Upper layer of water

Question No : 14

ISRO built India’s first satellite known as _____
(1) Aryabhatta
(3) Rohini
(4) Insat 1A

Question No : 15

_____ is the perpendicular distance between point of application of force and axis of rotation.
(1) Moment arm
(2) Moment of Inertia
(3) Altitude
(4) Base

Question No : 16

What did J B Dunlop invent?
(1) Pneumatic rubber tire
(2) Car Music System
(3) Steering Wheel
(4) Diesel Engine

Question No : 17

Who invented the Contact Lens?
(1) Enrico Fermi
(3) Sandford Fleming
(4) Benoit Fourneyron

Question No : 18

The SI unit of intensity of sound is ______
(1) watt per square meter
(2) joule per square meter
(3) Newton per square meter
(4) tesla per square meter

Question No : 19

Motion of a train is an example of _____
(1) Rotatory motion
(2) Spin motion
(3) Projectile motion
(4) Translatory motion

Question No : 20

When a running car stops suddenly, the passengers tends to lean forward because of
(1) Centrifugal force
(2) Inertia of rest
(3) Inertia of motion
(4) Gravitation force

Question No : 21

Sprayer functions are based on
(1) Bernoulli’s principle
(2) Archimedes’ principle
(3) Pascal’s law
(4) Floatation principle

Question No : 22

The Source of the sun’s energy, is the process of
(1) Photoelectric emission
(2) Nuclear fission
(3) Nuclear fusion
(4) Thermionic emission

Question No : 23

Tungsten is used for the manufacture of the filament of an electric bulb, because
(1) it is a good conductor
(2) it is economical
(3) it is malleable
(4) it has a very high melting point

Question No : 24

Earth’s escape velocity is
(1) 15.0 km/sec
(2) 21.1 km/sec
(3) 7.0 km/sec
(4) 11.2 km/sec

Question No : 25

The half life of a radioactive substance is 10 day; it means there will be:
(1) complete decay of substance in 20 days
(2) complete decay of substance of 40 days
(3) decay of $\frac{3}{4}$ part of substance in 20 days
(4) decay of $\frac{1}{4}$ part of substance in 5 days

Question No : 26

If the gravitational force of the earth suddenly disappears, which are of the following will be the correct consequence?
(1) The weight of an object will become zero but the mass will remain the same
(2) The mass of the object will become zero but the weight will remain the same
(3) Both the mass and the weight of the object will become zero
(4) The mass of the object will increase

Question No : 27

Which one of the following thermometers is known as pyrometer?
(1) Thermo-electric thermometer
(3) Gas thermometer
(4) Liquid thermometer

Question No : 28

Increasing the amount of a substance does not change its
(1) Volume
(2) Weight
(3) Mass
(4) Density

Question No : 29

The colour of light is determined by its
(1) Amplitude
(2) Wavelength
(3) Intensity
(4) Velocity

Question No : 30

Which of the following is not used as rocket propellant
(1) Liquid hydrogen
(2) Liquid oxygen
(3) Hydrazine
(4) Kerosene oil

Question No : 31

What gases are filled in fluorescent tube?
(1) Neon
(2) Sodium
(3) Mercury
(4) Mercury and neon

Question No : 32

(1) Alpha rays
(2) Beta rays
(3) Gamma rays
(4) All the above

Question No : 33

Total internal reflection can take place when light travels from:
(1) Diamond to glass
(2) Water to glass
(3) Air to water
(4) Air to glass

Question No : 34

The mirror, which is used in searchlights, is
(1) Concave mirror
(2) Convex mirror
(3) Simple mirror
(4) None of these

Question No : 35

A biotechnique in which ultrasonic sound is used
(1) Sonography
(2) E.C.G
(3) E.E.G
(4) X-ray

Question No : 36

Assertion (A): With the increase of temperature, the viscosity of glycerin increases.
Reason (R): Rise of temperature increases kinetic energy of molecules.
Code:
(1) Both (A) and (R) are true, and (R) is the correct explanation of (A)
(2) Both (A) and (R) are true, but (R) is not the correct explanation of (A)
(3) (A) is true, but (R) is false
(4) (A) is false, but (R) is true

Question No : 37

For reproducing sound, a CD (Compact Disc) audio player uses a:
(1) Quartz
(2) Titanium needle
(3) Laser beam
(4) Barium titanic ceramic

Question No : 38

Colour in a colour television is produced by a combination of three basic colours, they are:
(1) Red, blue and orange
(2) Red, green and blue
(3) Red, yellow and green
(4) Red, green and brown

Question No : 39

Mica is used in electrical appliances such as electric iron because mica is
(1) a good conductor of heat but a bad conductor of electricity
(2) a bad conductor of heat but a good conductor of electricity
(3) a good conductor of heat as well as electricity
(4) a bad conductor of heat as well as electricity

Question No : 40

If a person is sitting in a lift then when will he feel that his weight gets increased?
(1) When the elevator going upward expeditiously
(2) When the elevator going down expeditiously.
(3) Going upward with constant velocity
(4) Going downward with constant velocity

Question No : 41

Which of the following lens is used to minimize Myopia?
(1) Convex lens
(2) Concave lens
(3) Cylindrical lens
(4) None of these

Question No : 42

Which of the following is correct about magnetic field?
(1) Magnetic field has magnitude but no direction
(2) Magnetic field has both magnitude and direction
(3) Magnetic field may or may not have a direction
(4) None of these

Question No : 43

The velocity of sound in air is approximately
(1) 10 km/sec
(2) 10 mile/min
(3) 330 m/sec
(4) 3 ´ 1010/sec

Question No : 44

Which is not used as Atomic fuel?
(1) Uranium
(2) Thorium
(3) Plutonium

Question No : 45

Alternate current is not preferable
(1) To charge storage battery
(2) To run/start a electric motor
(3) To transmit electric power
(4) To heat up electric toaster

Question No : 46

Which one of the following pairs is not correctly matched:
(1) Discovery of Meson – Hideki Yukawa
(2) Discovery of Positron – C.D. Anderson and U.F. Hess
(3) Theory of energy production in the sun and stars – H.A. Bethe
(4) Synthesis of transuranic elements-Enrico Fermi transuranic elements

Question No : 47

How many watts are there in a horsepower?
(1) 1000
(2) 750
(3) 746
(4) 748

Question No : 48

Which one of the following is not correct?
(1) Theory of evolution was propounded by Charles Darwin
(2) The breaking apart of the nucleus of an atom is called fusion
(3) ‘Dry ice’ is nothing but solid carbon dioxide
(4) Telephone was invented by Graham Bell

Question No : 49

Name the first Indian who got Nobel Prize in physics.
(1) C K Naidu
(2) Rangnath Mishra
(3) Amartya Sen
(4) C V Raman

Question No : 50

The change of focal length of an eye lense is caused by action of the
(1) Pupil
(2) Retina
(3) Ciliary muscles
(4) Iris