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Physics Test - 1

  • 1. When the speed of car is doubled, then what will be the braking force of the car to stop it in the same distance?

    a 
    four times
    b 
    two times
    c 
    half
    d 
    one-fourth

    Explanation:
    Subject: 
    GENERAL SCIENCE

    34.09% users answered right
    Correct Answer: a
    Comment · 3 · 
  • 2.
    The mass of a star is two times the mass of the sun. How it will come to an end?

    a 
    Neutron star
    b 
    Black hole
    c 
    White Dwarf
    d 
    Red Giant

    Explanation:
    Subject: 
    GENERAL SCIENCE

    18.92% users answered right
    Correct Answer: a
    Comment · 1 · 
  • 3.
    On which of the following techniques photostate machine works?

    a 
    Magnetic Image – Making
    b 
    Thermal Image – Making
    c 
    Electrostatic Image – Making
    d 
    Electromagnetic Image – Making

    Explanation:
    Subject: 
    GENERAL SCIENCE

    29.41% users answered right
    Correct Answer: c
    Comment · 2 · 
  • 4.

    Two waves, each of amplitude 1.5mm and frequency 10 Hz, are travelling in opposite direction with a speed of 20 mm/s. The distance in mm between adjacent nodes is:

    a 
    1.0
    b 
    1.2
    c 
    1.5
    d 
    2.0
     

    Explanation:
    Subject: 
    GENERAL SCIENCE

    7.41% users answered right
    Correct Answer: d
    Comment · 3 · 
  • 5.
    The snow on the mountain does NOT melt all at once when it is heated by the sun because:

    a 
    it becomes very hard
    b 
    it reflects most of the heat from the sun
    c 
    it has a low specific heat capacity
    d 
    it has a high latent heat of fusion

    Explanation:
    Subject: 
    GENERAL SCIENCE

    27.59% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 6.
    A person standing on a railway platform listens to the whistles of arriving and departing trains. The whistle heard is:

    a 
    the same in both cases in all respects
    b 
    of higher intensity when train arrives
    c 
    of higher pitch when train arrives
    d 
    of higher pitch when train departs

    Explanation:
    Subject: 
    GENERAL SCIENCE

    37.04% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 7.
    Holography is a technique of

    a 
    recording a permanent sharp two dimensional black and white or multicolour photograph
    b 
    recording a permanent three dimensional multicolour photograph
    c 
    recording a permanent three dimensional black and white photograph
    d 
    recording a permanent three dimensional photograph of a given single colour or a multicolour

    Explanation:
    Subject: 
    GENERAL SCIENCE

    34.78% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 8.

    An ice block with a piece of lead embedded in it floats in water. If ice melts the water level

    a 
    rises
    b 
    falls
    c 
    remains same
    d 
    falls first and then rises
     

    Explanation:
    Subject: 
    GENERAL SCIENCE

    31.82% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 9.
    The velocity of heat radiation in vacuum is

    a 
    equal to that of light
    b 
    less than that of light
    c 
    greater than that of light
    d 
    Equal to that of sound

    Explanation:
    Subject: 
    GENERAL SCIENCE

    38.10% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 10.
    When heated from 0 to 10 volume of a given mass of water will:

    a 
    Increase gradually
    b 
    Decrease gradually
    c 
    Increase and then will decrease
    d 
    Decrease and then will increase

    Explanation:
    Subject: 
    GENERAL SCIENCE

    4.55% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 11.
    Q.11)
    In electronics what comes under tank circuit?

    a 
    Resistance and capacity
    b 
    Resistance and inductance
    c 
    Capacity and inductance
    d 
    Resistance, capacity and inductance

    Explanation:
    Subject: 
    GENERAL SCIENCE

    26.32% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 12.
    Coolis tube is used to produce

    a 
    Radio waves
    b 
    Micro waves
    c 
    X-rays
    d 
    Gama rays

    Explanation:
    Subject: 
    GENERAL SCIENCE

    28.57% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 13.
    Which combination of colour is the most convenient during day and night time?

    a 
    Orange and blue
    b 
    White and Black
    c 
    Yellow and blue
    d 
    Red and green

    Explanation:
    Subject: 
    GENERAL SCIENCE

    28.57% users answered right
    Correct Answer: d
    Comment · 1 · 
  • 14.

    The shape of our milky way galaxy is:

    a 
    circular
    b 
    elliptical
    c 
    spiral
    d 
    None of the above
     

    Explanation:
    Subject: 
    GENERAL SCIENCE

    23.81% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 15.
    The different colours of different stars are due to the variation of

    a 
    temperature
    b 
    pressure
    c 
    density
    d 
    radiation from them

    Explanation:
    Subject: 
    GENERAL SCIENCE

    47.83% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 16.
    Instrument used to measure the force and velocity of the wind is

    a 
    Ammeter
    b 
    Anemometer
    c 
    Altimeter
    d 
    Audiometer

    Explanation:
    Subject: 
    GENERAL SCIENCE

    72.73% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 17.
    If the length of a simple pendulum is halved then its period of oscillation is

    a 
    Doubled
    b 
    Halved
    c 
    Increased by a factor √2
    d 
    Decreased by a factor √2

    Explanation:
    Subject: 
    GENERAL SCIENCE

    13.64% users answered right
    Correct Answer: d
    Comment · 1 · 
  • 18.
    When a Barometer reading suddenly recedes, it indicates that climate

    a 
    Will be very warm
    b 
    Will be extremely stormy
    c 
    Will remain cold
    d 
    Incessant rain for at least 48 hours

    Explanation:
    Subject: 
    GENERAL SCIENCE

    50.00% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 19.
    Electron microscope was invented by

    a 
    Knoll and Ruska
    b 
    Robert Koch
    c 
    Leeuwenhock
    d 
    C.P.Swanson

    Explanation:
    Subject: 
    GENERAL SCIENCE

    9.52% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 20.
    Clear nights are colder than cloudy nights because of

    a 
    Conduction
    b 
    Condensation
    c 
    Radiation
    d 
    insolation

    Explanation:
    Subject: 
    GENERAL SCIENCE

    30.00% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 21.

    A gas thermometer is more sensitive than a liquid thermometer because a gas:

    a 
    is lighter than liquid
    b 
    expands more than a liquid
    c 
    is easy to obtain
    d 
    does not change easily
     

    Explanation:
    Subject: 
    GENERAL SCIENCE

    50.00% users answered right
    Correct Answer: b
    Comment · 1 · 
  • 22.

    Which of the following is used for the sun glasses?

    a 
    Pyrex glass
    b 
    Flint glass
    c 
    Crooks glass
    d 
    Crystal glass
     

    Explanation:
    Subject: 
    GENERAL SCIENCE

    15.79% users answered right
    Correct Answer: c
    Comment · 1 · 
  • 23.
    When the Barometer reading dips suddenly, it is an indication of

    a 
    Hot weather
    b 
    Calm weather
    c 
    Storm
    d 
    Dry weather

    Explanation:
    Subject: 
    GENERAL SCIENCE

    57.89% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 24.
    The term equinox means

    a 
    The path which the earth
    b 
    The axis of the earth around which it rotates
    c 
    When the day and night are of equal duration
    d 
    The time when the sun seems to be going round and round in the sky in the Arctic but does not go below the horizon

    Explanation:
    Subject: 
    GENERAL SCIENCE

    57.89% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 25.
    In which of the following cases, kinetic energy is being used in performing work?

    a 
    Paddling the bicycle to cover a distance
    b 
    Driving a car to cover a distance
    c 
    Wind mill grinding wheat grain
    d 
    Rowing a boat in the lake

    Explanation:
    Subject: 
    GENERAL SCIENCE

    10.53% users answered right
    Correct Answer: b
    Comment · 1 · 
  • 26.
    Which of the following occurred first?

    a 
    Albert Einstein propounded the general Theory of Relativity
    b 
    Max Planck unveiled the Quantum Theory
    c 
    Guglielmo Marconi sent out the first wireless signals
    d 
    Wright Brothers successfully flew an aircraft

    Explanation:
    Subject: 
    GENERAL SCIENCE

    18.75% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 27.

    What is the wavelength of visible spectrum?

    a 
    1300  - 3000 Å
    b 
    3900 Å – 7600 Å
    c 
    7800 Å – 8000 Å
    d 
    8500 Å – 9800 Å
     

    Explanation:
    Subject: 
    GENERAL SCIENCE

    47.06% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 28.

    Who measured the velocity of light first?

    a 
    Galileo
    b 
    Newton
    c 
    Romer
    d 
    Einstein
     

    Explanation:
    Subject: 
    GENERAL SCIENCE

    21.05% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 29.
    An electron microscope gives higher magnification than an optical microscope, because:

    a 
    It uses more powerful lenses
    b 
    The velocity of electron is smaller than that of visible light
    c 
    The electrons have more energy than the light particles
    d 
    The wavelength of electrons is smaller as compared to the wavelength of visible light

    Explanation:
    Subject: 
    GENERAL SCIENCE

    47.06% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 30.
    The hydraulic brake used in automobiles is a direct application of:

    a 
    Archimedes’ principle
    b 
    Toricellian law
    c 
    Bernoulli’s theorem
    d 
    Pascal’s law

    Explanation:
    Subject: 
    GENERAL SCIENCE

    35.29% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 31.
    Where are mesons found?

    a 
    Cosmic Rays
    b 
    X-rays
    c 
    Gamma Rays
    d 
    Laser bean

    Explanation:
    Subject: 
    GENERAL SCIENCE

    53.33% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 32.
    Plants are dired up in winter due to frost because

    a 
    Evaporation does not take place
    b 
    Photosynthesis does not take place at such low temperature
    c 
    Respiration does not take place at low temperature
    d 
    There is mechanical loss of tissues and drought condition prevails

    Explanation:
    Subject: 
    GENERAL SCIENCE

    25.00% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 33.
    Lamberts law is related to

    a 
    Reflection
    b 
    Refraction
    c 
    Interference
    d 
    Illumination

    Explanation:
    Subject: 
    GENERAL SCIENCE

    18.75% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 34.
    Cryogenics is a science dealing with

    a 
    High temperature
    b 
    Low temperature
    c 
    Friction and wear
    d 
    Growth of crystals

    Explanation:
    Subject: 
    GENERAL SCIENCE

    29.41% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 35.
    The mass-energy relation is the outcome of

    a 
    Quantum theory
    b 
    General theory of relativity
    c 
    Field theory of energy
    d 
    Special theory of relativity

    Explanation:
    Subject: 
    GENERAL SCIENCE

    17.65% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 36.
    Which of the following are used for accurately measuring very small time intervals?

    a 
    Pulsars
    b 
    Quartz clocks
    c 
    Atomic clocks
    d 
    White Dwarfs

    Explanation:
    Subject: 
    GENERAL SCIENCE

    35.29% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 37.
    Knot is a measure of

    a 
    The speed of ship
    b 
    The curvature of spherical objects
    c 
    Solar radiation
    d 
    Intensity of earthquake

    Explanation:
    Subject: 
    GENERAL SCIENCE

    25.00% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 38.
    What is the reason for twinkling of stars?

    a 
    Dispersion of light
    b 
    Total internal reflection
    c 
    Atmospheric reflection
    d 
    Atmospheric refraction

    Explanation:
    Subject: 
    GENERAL SCIENCE

    11.76% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 39.
    Pycnometer is an instrument used to measure the

    a 
    Density
    b 
    Intensity of solar radiation
    c 
    Intensity of earthquake
    d 
    High temperatures

    Explanation:
    Subject: 
    GENERAL SCIENCE

    11.76% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 40.

    Energy of Ultraviolet rays is greater than

    a 
    Infra-red rays
    b 
    Gamma rays
    c 
    X-rays
    d 
    Cosmic rays
     

    Explanation:
    Subject: 
    GENERAL SCIENCE

    35.29% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 41.
    The metal used to make lightning conductors is

    a 
    Iron
    b 
    Aluminium
    c 
    Copper
    d 
    Zinc

    Explanation:
    Subject: 
    GENERAL SCIENCE

    22.22% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 42.
    A Hydrogen balloon floats up because of

    a 
    Air pressure decreases with decrease in height
    b 
    Air pressure decreases with decrease in weight
    c 
    Weight of the balloon is less than the weight of air displaced by it
    d 
    The pressure inside the balloon is more than the pressure outside it

    Explanation:
    Subject: 
    GENERAL SCIENCE

    52.94% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 43.
    Super conductors are those elements

    a 
    Whose conductivity is intermediate between metals and insulators
    b 
    Whose resistance falls almost to zero at very low temperatures
    c 
    Which turn into insulators at very low temperatures
    d 
    Which conduct electricity only at super- high temperatures

    Explanation:
    Subject: 
    GENERAL SCIENCE

    38.89% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 44.
    The energy stored in a watch spring is

    a 
    Kinetic energy
    b 
    Potential energy
    c 
    Heat energy
    d 
    Chemical energy

    Explanation:
    Subject: 
    GENERAL SCIENCE

    66.67% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 45.
    The sensation of weightlessness in a spacecraft in an orbit is due to the

    a 
    Absence of gravity outside
    b 
    Acceleration in the orbit which is equal to the acceleration due to gravity outside
    c 
    Presence of gravity outside but not inside the spacecraft
    d 
    Fact that spacecraft in the orbit has no energy

    Explanation:
    Subject: 
    GENERAL SCIENCE

    25.00% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 46.
    The oldest type of energy known to man is

    a 
    Wind power
    b 
    Solar power
    c 
    Tidal energy
    d 
    Geothermal energy

    Explanation:
    Subject: 
    GENERAL SCIENCE

    23.53% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 47.
    We always see the same face of the moon, because

    a 
    It is smaller than the earth
    b 
    It revolves on its axis in a direction opposite to that of the earth
    c 
    It takes equal time for revolution around the earth and rotation on its own axis
    d 
    It rotates at the same speed as the earth around the sun

    Explanation:
    Subject: 
    GENERAL SCIENCE

    43.75% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 48.
    A parachute descends slowly whereas a stone dropped from the same height falls rapidly, because

    a 
    Stone is heavier than parachute
    b 
    Special mechanisms are present in parachute
    c 
    A parachute has a larger surface area and air resistance is more
    d 
    None of these

    Explanation:
    Subject: 
    GENERAL SCIENCE

    50.00% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 49.
    Which of the following instruments is used to measure humidity?

    a 
    Kata thermometer
    b 
    Anemometer
    c 
    Sling Psychrometer
    d 
    Clinical Thermometer

    Explanation:
    Subject: 
    GENERAL SCIENCE

    17.65% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 50.
    The type of mirrors used in the headlamp of cars is

    a 
    Parabolic concave
    b 
    Plane
    c 
    Spherical convex
    d 
    Cylindrical concave
    Explanation:
    Subject: 
    GENERAL SCIENCE

    29.41% users answered right
    Correct Answer: a
    Comment · 0 ·