## The Chennai School Of banking

#### GENERAL SCIENCE Physics-03

Question No : 1

An image formed by a concave mirror on a screen is called _____?
(1) Virtual image
(2) Real image
(3) Inverted image
(4) Erect image

Question No : 2

The impression of an image persists on the retina for about _____ of a second.
$(1) \frac{1}{10th}$
$(2) \frac{1}{8th}$
$(3) \frac{1}{16th}$
$(4) \frac{1}{5th}$

Question No : 3

The force of friction between two surfaces will increase if:
(1) A layer of lubricant is kept between the two surfaces
(2) The two surfaces are pressed harder
(3) Air gap is created between the two surfaces
(4) Irregularities on both the surfaces are removed

Question No : 4

Who invented Space Pen?
(1) Paul C. Fisher
(2) Rudolf Diesel
(3) Wright Brothers
(4) Alexander Fleming

Question No : 5

If the orbit of a planet is an ellipse then what is the point at which the Sun is located called?
(1) Centre
(2) Circumcentre
(3) Incentre
(4) Focus

Question No : 6

What is the value of the Least Distance of Distinct vision (in cm) for a normal human being?
(1) 2.5
(2) 25
(3) 58
(4) 60

Question No : 7

Supercooling is cooling of liquid _____
(1) Below melting point
(2) Below freezing point
(3) At melting point
(4) Above melting point

Question No : 8

The bending of light when it passes around a corner or a slit is due to _____.
(1) Reflection
(2) Refraction
(3) Diffraction
(4) Total internal reflection

Question No : 9

Optical fibre works on which of the following principle of light?
(1) Reflection
(2) Refraction
(3) Diffraction
(4) Total internal reflection

Question No : 10

If objects appear enlarged and inverted in a rear view mirror, then which type of mirror is used?
(1) Concave
(2) Convex
(3) Cylindrical
(4) Plane

Question No : 11

In a qualitative way, the tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called _____.
(1) Force
(2) Acceleration
(3) Friction
(4) Inertia

Question No : 12

Which of the following device is used to measure humidity?
(1) Hydrometer
(2) Hygrometer
(3) Psycho Meter
(4) Anemometer

Question No : 13

Which of the following instrument is used to measure Soil Water Tension?
(1) Photometer
(2) Pyrometer
(3) Psychrometer
(4) Tensiometer

Question No : 14

Newton’s first law is also known as _____
(1) Law of friction
(2) Law of moments
(3) Law of Inertia
(4) Law of motion

Question No : 15

Acceleration due to gravity on a planet decreases with _____
(1) decrease in radius of the planet
(2) increase in mass of the planet
(3) decrease in mass of the body
(4) increase in altitude from surface of the planet

Question No : 16

What is Inertia?
(1) Tendency to resist change in the current state
(2) Tendency to impart acceleration to a body
(3) Tendency to bring a body to rest
(4) Tendency to change its current state

Question No : 17

What is the viscosity of an ideal fluid?
(1) Equal to its mass
(2) Equal to its weight
(3) Zero
(4) One

Question No : 18

Maximum displacement of vibrating particle from its mean point is known as
(1) Amplitude
(2) Acceleration
(3) Magnitude
(4) None of these

Question No : 19

Electric motors operating at low voltages tend to burn out because
(1) They draw more current which is inversely proportional to the voltage
(2) They draw more current which is inversely proportional to the square root of the voltage
(3) They draw heat proportional to$V^{2}$.
(4) Low voltage sets in electrical discharge.

Question No : 20

For a body moving with non-uniform acceleration
(1) Displacement-time graph is linear
(2) Displacement-time graph is non-linear
(3) Velocity-time graph is non-linear
(4) Velocity-time graph is linear

Question No : 21

The hair of shaving brush clings together when removed from water due to
(1) Surface tension
(2) Viscosity
(3) Elasticity
(4) Friction

Question No : 22

In nuclear reactor, heavy water is used as
(1) Coolant
(2) Fuel
(3) Moderator
(4) Atomic stasher

Question No : 23

Red is used an as emergency or danger signal because
(1) it is a striking colour
(2) its wavelength is the longest
(3) its low wavelength
(4) it has very high energy

Question No : 24

‘The National Science Day’ is observed on
(1) January, 28
(2) February, 28
(3) March, 28
(4) April, 28

Question No : 25

Propagation of sound wave is proposed by
(1) Joule
(2) Robert Boyle
(3) Newton
(4) James Anderson

Question No : 26

Which one of the following is used as an antifreeze for the automobile engines?
(1) Ethanol
(2) Ethylene glycol
(3) Methanol
(4) Propyl alcohol

Question No : 27

Consider the following statements about ultrasonic waves:
1. They can destroy insects
2. They can clean clothes by removing dust
3. They can be used to treat diseases
4. They can control automatic doors
Of the above statements
(1) 1 and 2 are correct
(2) 3 and 4 are correct
(3) 1, 2 and 3 are correct
(4) All are correct

Question No : 28

How many units of electricity will be consumed if you use a 60-watt electric bulb for 5 hours everyday for 30 days?
(1) 12
(2) 9
(3) 6
(4) 3

Question No : 29

Match List-I with List –II and select the correct answer by using the codes given below:
List-I                                   List-II
(Atomic Power Station)      (State of Situation)
B. Narora                            2. Gurajat
D. Trombay                         4. Maharashtra
CODE
A    B   C   D
(1) 1    2    3    4
(2) 3    1    2    4
(3) 3    1    4    2
(4) 2    3    4    1

Question No : 30

A pendulum clock can run faster in
(1) Summer
(2) Winter
(3) Spring season
(4) Rainy season

Question No : 31

What was the fissionable material used in the bombs dropped at Nagasaki (Japan) in the year 1945?
(1) Sodium
(2) Potassium
(3) Plutonium
(4) Iron

Question No : 32

Pressure inside a soap bubble is
(1) More than atmospheric pressure
(2) Less than atmospheric pressure
(3) Equal to atmospheric pressure
(4) Half of atmospheric pressure

Question No : 33

What is absolute zero temperature?
(1) The starting point of any temperature scale
(2) Theoretically the lowest possible temperature
(3) The temperature at which the vapour of any liquid substance is condensed.
(4) The temperature at which all material in vapour form.

Question No : 34

Conversion of heat into electrical is achieved by using :
(1) Ammeter
(2) Hydrometer
(3) Voltmeter
(4) Thermocouple

Question No : 35

The Indira Gandhi Atomic Research Centre is located in
(1) Maharashtra
(4) Karnataka

Question No : 36

The technique used to transmit audio signals in television broadcast is
(1) Amplitude modulation
(2) Pulse code modulation
(3) Frequency modulation
(4) Time dimension multiplication

Question No : 37

Why it is easier to swim in the sea than in a river?
(1) The sea water is salty
(2) The sea water is deep
(3) The sea water is heavier
(4) The sea water is lighter

Question No : 38

An astronaut sees the colour of the sky as
(1) Blue
(2) White
(3) Black
(4) Red

Question No : 39

When a mirror is rotated by an angle q, the reflected ray will rotate by:
(1) 0
$(2) \frac{\Theta }{2}$
$(3) \Theta$
$(4) 2\Theta$

Question No : 40

Why does food cook faster in a pressure cooker?
(1) The increased pressure increases the boiling point
(2) Does not waste steam
(3) The food is cooked quickly by steam
(4) The water boils at constant temperature

Question No : 41

Point A is at a lower electrical potential than point B. An electron between them on the line joining them will
(1) move towards A
(2) move towards B
(3) move at right angles to the line joining A and B
(4) remain at rest

Question No : 42

The sun and the moon appear elliptical near the horizon because of:
(1) Refraction
(2) Optical illusion
(3) Interference phenomenon
(4) Their actual shape

Question No : 43

Who was the first scientist to discover Electrons?
(1) Albert Einstein
(2) Isaac Newton
(3) J.C. Bose
(4) J.J Thompson

Question No : 44

Light is made of seven colours. What is the method of separating the colours?
(1) The colours can be separated by a prism
(2) The colours can be separated by a filter
(3) The colours can be separated by plants
(4) The colours cannot be separated

Question No : 45

Human eye is most sensitive to visible light to the wavelength
(1) 655 nm
(2) 555 nm
(3) 455 nm
(4) 755 nm

Question No : 46

The temperature of the filament of lighted electric bulb is generally:
(1) 100°C to 500°C
(2) 1000°C to 1500°C
(3) 2000°C to 2500°C
(4) 4000°C to 5000°C

Question No : 47

Which of the following are semiconductors?
A. Silicon
B. Quartz
C. Ceramics
D. Germanium
Choose the correct answer from the following alternatives:
(1) A and B
(2) A and C
(3) A and D
(4) C and D

Question No : 48

The time period of a pendulum
(1) Depends on the mass
(2) Depends on the length
(3) Depends on time
(4) Depends on temperature

Question No : 49

Which of the following element has an isotope named as Tritium?
(1) Helium
(2) Carbon
(3) Titanium
(4) Hydrogen

Question No : 50

What is the source of electrical energy in an artificial satellite?
(1) Solar cells
(2) Mini nuclear reactor
(3) Dynamo
(4) Thermopile