Basic Concepts of Physics MCQs

Everyday Science MCQs (Basic Concepts of Physics)

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Basic Concepts of Physics MCQs

(Everyday Science MCQs)

Which is the densest planet of our solar system?(a) Sun(b) Jupiter(c) Mercury(d) EarthAnswer:. d

A gradual rise in a barometer height indicates(a) Approach of fair weather(b) Approach of immediate storm(c) Likelihood of rainfall(d) Nothing significantAnswer: a

An artificial earth satellite is said to be in geostationary orbit when(a) It is so placed in the space that it does not move(b) It remains stationery in relation to earth(c) Its course is governed by terrestrial gravity(d) It is made to stay in one place in obedience to commands from a space centre on earthAnswer: b

Escape velocity is(a) The minimum velocity required by a projectile to escape from a particular gravitationalfield(b) The velocity of a comet(c) Velocity required for a satellite to move in circular orbit around earth(d) Velocity required for a satellite to re-enter earth’s atmosphereAnswer: d



Ludington, Michigan has the biggest _______ storage system in the world.(a) Compressed Air(b) Chemical(c) Superconducting(d) Pumped HydroelectricAnswer: d

The length of an Earth day is determined by the time required for approximatelyone(a) Earth rotation(b) Earth revolution(c) Sun rotation(d) Sun revolutionAnswer: a

What constitute current in a metal wire?(a) Electrons(b) Protons(c) Atoms(d) MoleculesAnswer: a

The resistance of carbon ——— with rise in the temperature(a) Increases(b) Decreases(c) Remain the same(d) FluctuateAnswer: b



Good conductors have many loose bounds(a) Atoms(b) protons(c) Molecules(d) electronsAnswer: d

What is the colour of red rose in green light?(a) Red(b) Yellow(c) Black(d) BlueAnswer: c

In cold countries glycerol is added to water in car radiators as it helps to(a) Lower the specific heat of water(b) Lower the viscosity of water(c) Lower the freezing point of water(d) Improve the lubricityAnswer: c

If the sun is shining brightly in one part of the sky after rain, how many rainbowsare observed?(a) One(b) Two(c) Four(d) InfiniteAnswer: b

Focusing in a camera is carried out by varying(a) The amount of light(b) The distance of the lens from the film



(c) The distance of the lens from the object(d) The brightness of light and speed of shutterAnswer: b

Which of the following is a good conductor of heat and electricity?(a) Diamond(b) Anthracite(c) Granite(d) GraphiteAnswer: d

The wire in electric fittings are éarthed’ so that(a) Electricity may not leak(b) There may be a smooth flow of electricity(c) Current may pass to the earth in case of a short circuit, without doing any harm(d) To prevent a short circuitAnswer: b

The wire of an electric lamp has a(a) High resistance and a high melting point(b) High resistance and a low melting point(c) Low resistance and a low melting point(d) Low resistanceAnswer: a

There is along steel pipe fixed in a compound. One boy stands at one end of thepipe and places his ear at the end. If another boy strikes the other portion of thepipe, the first boy will hear(a) One sound(b) Two sounds(c) Infinite sounds(d) No sound



Answer: b

Combing hair sometimes produces a crackling sound because(a) Of friction between comb and hair(b) Comb attracts the hair(c) Electric charge is produced by friction(d) Of dryness of hair and combAnswer: c

The wire having a black plastic cover is a(a) Live wire(b) neutral wire(c) Earth wire(d) none of theseAnswer: a

The fuse wire is generally made of(a) Silver(b) copper(c) Tin-lead alloy(d) silver & copperAnswer: c

The various distribution circuits are connected in(a) Series(b) parallel(c) Series or parallel(d) None of theseAnswer: b



Instead of using an AC, what will happen if a refrigerator is placed open in an air-tight closed room?(a) Room will repeatedly become cool and hot alternatively(b) Room will become cooler(c) Room will become hotter(d) Room’s temperature will not changeAnswer: d

Laws of electrolysis was given by(a) Faraday(b) Maxwell(c) Lenz(d) BohrAnswer: a

The split ring in motion is called(a) Armature(b) Rotor(c) commutator(d) CoreAnswer: c

Which of the following can’t be used to make a solar cell?(a) Silicon(b) Platinum(c) Gallium(d) GermaniumAnswer: b

Which atomic reactor is used for studies of uranium of heavy water lattice?(a) Apsara(b) Zerlina



(c) Dhurva(d) Purnima -IAnswer: b

Heavy water is(a) Sea water(b) D2O(c) H2O(d) None of theseAnswer: b

Which of the following is a supporter of combustion?(a) Cooking gas(b) Nitrogen gas(c) Oxygen gas(d) Producer gasAnswer: c

Choose the source of energy which is different from others(a) Bio gas(b) Plants(c) Vegetable refuse(d) Crude oilAnswer: d

Magnetite is a/an(a) Neutral magnet(b) Electromagnet(c) U-shaped magnet(d) None of theseAnswer: a



Electromagnets are used in(a) Electric bells(b) Telephones(c) Dynamos(d) all of aboveAnswer: d

Galaxies are usually classified on the basis of there(a) Mass(b) Size(c) shape(d) All of theseAnswer: c

Shooting star is another name for(a) Comet(b) Meteor(c) Solar flare(d) NebulaeAnswer: b

Which of the following is a star?(a) Sun(b) Mercury(c) Pluto(d) VenusAnswer: a

The field in which Einstein won Nobel Prize:(a) Biology



(b) Mathematics(c) Physics(d) EducationAnswer: c

Which suffers minimum deviation when white light undergoes dispersion?(a) Green(b) Red(c) Violet(d) YellowAnswer: b

Diffusion of light in atmosphere takes place due to:(a) Carbon dioxide(b) Dust particles(c) Helium(d) Water vapourAnswer: b

Ponds looks shallow because of(a) Reflection(b) Refraction(c) Diffusion(d) DispersionAnswer: b

The ratio of the velocity of the body to the velocity of the sound is called(a) Magic number(b) Replace number(c) Natural number(d) Match number



Answer: d

A hot body will radiate heat most rapidly if its surface is(a) White and polished(b) white and rough(c) black and polished(d) black and roughAnswer: d

An ice ball floats into a water tank, when the ice melts, the water level(a) Rises(b) Does not change(c) Falls down(d) None of theseAnswer: b

A dental plate clings to the roof of the mouth because(a) Force of cohesion increases(b) Force of cohesion decreases(c) Force of adhesion increases(d) Force of adhesion decreasesAnswer: c

What is light amplification by stimulated emission of radiation?(a) Solar energy(b) A laser(c) Plasma(d) Cosmic raysAnswer: b



What is light subtraction?(a) It is shutting out light beams to create a darkened void.(b) It is using the color spectrum to see if stars are moving away from Earth.(c) It is how things that do not give off light are colored(d) None of theseAnswer: c

Why does a green cucumber appear green?(a) It gives off green particles, which enter your eyes.(b) Green particles are attracted to it.(c) It absorbs all the s except for green, so you only see green(d) None of theseAnswer: c

A red tomato appears to be which under blue light?(a) Black(b) Red(c) Blue(d) PurpleAnswer: a

What do you get when you add all of the additive s together?(a) Black(b) White(c) Brown(d) GreyAnswer: b

A ray of white light strikes a rectangular glass block normally. How many rays oflight, and what, emerge from the block?(a) Seven rays of light (VIBGYOR)(b) Three rays of red, blue and green light respectively



(c) One ray of white lightAnswer: c

Which of the following prisms would be suitable for use in a periscope?(a) An isosceles right angled prism(b) An equilateral prism(c) An isosceles prism(d) None of theseAnswer: a

A specific mass of pure water is frozen to form completely transparent ice, in theshape of a lens. When forced underwater, the lens diverges light. What is the shapeof the lens?(a) Concave lens(b) Convexo-concave lens(c) Cylindrical lens(d) Convex lensAnswer: d

Which of the following mirrors is most suitable for using as a reflector in carheadlights?(a) Parabolic mirror(b) Convex mirror(c) Concave mirror(d) Plane mirrorAnswer: a

What is the range of frequencies in which AM radio operates?(a) 88 to 108 MHz(b) 215 to 220 MHz(c) 54 to 88 MHz(d) 550 to 1700 KHz



Answer: d

What range of electromagnetic radiation is used to cook food in special ovens?(a) Gamma(b) infrared(c) Microwave(d) ultravioletAnswer: c

Besides X-rays, what other type of EM radiation is used to look inside a humanbody without cutting it open?(a) Infrared(b) Radio waves(c) Gamma rays(d) None of theseAnswer: c

What type of EM radiation gives people tans?(a) Gamma(b) infrared(c) Ultraviolet(d) visibleAnswer: c

What device makes use of EM radiation?(a) SONAR(b) RADAR(c) SCUBA(d) TASERAnswer: b



Which of the following EM types have the highest energy levels?(a) Radio(b) visible(c) X-rays(d) infraredAnswer: c

Which of the following EM types have the lowest energy levels?(a) Ultraviolet(b) microwave(c) X-rays(d) gamma raysAnswer: b

Kinetic energy is(a) Life energy, possessed only by living organisms(b) Only important at subatomic distances(c) Energy of movement(d) None of theseAnswer: c

What type of radiation did Dr. Banner expose himself to in his experiment toachieve superhuman strength?(a) X-ray(b) Radio(c) Ultraviolet(d) GammaAnswer: d

An “illuminant” is the term used to describe the light energy that hits an object.



What is used to refer to the color of illuminants?(a) Gravity(b) watts(c) Distance(d) temperatureAnswer: d

What light source is used for most color analysis instruments?(a) Xenon(b) Neon(c) Tungsten(d) DeuteriumAnswer: a

He said all matter in motion has a wavelike nature.(a) deBroglie(b) Planck(c) Schrodinger(d) ThomsonAnswer: a

His theory, simplified, was that the electrons in the atom move in preciselydetermined orbits.(a) Pauli(b) Bohr(c) Aufbau(d) HertzAnswer: b

What Greek letter is used to denote frequency?(a) Lambda(b) Nu



(c) Phi(d) KappaAnswer: b

If you have light of 5500 Angstroms, what color is it?(a) Blue(b) Green(c) Yellow(d) VioletAnswer: b

The Heisenberg Uncertainty Principle states that it is impossible to determineaccurately what of fast moving particles simultaneously?(a) Position and quanta(b) Principal and secondary quantum numbers(c) Electrostatic attraction(d) Position and momentumAnswer: d

Who received the Nobel Prize for his explanation of the photoelectric effect (lightbehaves like a particle)?(a) Heisenberg(b) Einstein(c) de Broglie(d) SchrodingerAnswer: b

Spectroscopy is the branch of physics deals with the electromagnetic radiationemitted and absorbed by(a) Atoms(b) Molecules(c) Both



(d) None of theseAnswer: c

When an electric current passes through atomic gas under reduced pressure, thespectra observed is(a) Continuous(b) Line(c) Band(d) None of theseAnswer: b

Balmer series of hydrogen spectrum were identified by J.J. Balmer in(a) 1882(b) 1888(c) 1885(d) 1896Answer: c

Using spectroscopy the helium was identified in the(a) Stars(b) Sun(c) Earth(d) None of theseAnswer: b

Inner shell transition in X-Rays takes place in(a) Lighter elements(b) Medium element(c) Heavy elements(d) None of theseAnswer: c



The energy of characteristic X-rays depends on the(a) Wavelength(b) Target material(c) Frequency(d) None of theseAnswer: b

X-Rays can penetrate into a solid matter for(a) Some millimetre(b) Centimeter(c) Several centimetre(d) None of theseAnswer: c

Darkening of X-ray film is proportional to the(a) Current(b) Voltage(c) Radiation exposure(d) None of theseAnswer: c

X-rays are useful for cells(a) Living cells(b) Damaged cells(c) Cancerous cells(d) None of theseAnswer: c

LASER is a beam of light which is(a) Monochromatic



(b) Coherent(c) Very Narrow(d) All of themAnswer: d

In LASER principle, a photon produce another photon by the process of(a) Excitation(b) De-excite(c) Ionization(d) None of theseAnswer: b

In which process, the photon emits to produce laser beam(a) Induced absorption(b) Spontaneous emission(c) Induced emission(d) All of theseAnswer: c

Laser light is used to destroy the(a) Cancerous cells(b) Pre-cancerous cells(c) Tissues(d) All of theseAnswer: d

LASER is the potential energy source used to inducing(a) Fission reactions(b) Fusion reactions(c) Chemical reactions(d) None of these



Answer: b

Laser can be used in the field of(a) Polarization(b) Telecommunications(c) Radioactivity(d) None of theseAnswer: b

The energy of characteristic X-rays depends upon the(a) Voltage applied(b) Type of target(c) Temperature(d) None of theseAnswer: b

Laser beam can be used for(a) Wilding of detached retinas(b) Destroy tissues in a localized area(c) Sealed off capillaries for prevention of disease(d) All of theseAnswer: d

Oscillatory motion is a type of motion which is(a) To and fro(b) Vibratory motion(c) Periodic motions(d) All of theseAnswer: d



The body oscillates due to a(a) Applied force(b) Restoring force(c) Frictional force(d) None of theseAnswer: b

The restoring force is always directed towards the(a) Initial position(b) Final positions(c) Rest position or mean position(d) All of theseAnswer: c

The vibrating bodies produce(a) Sound(b) Waves(c) Disturbance(d) All of theseAnswer: d

Restoring force is the(a) Opposing force(b) Frictional force(c) Elastic force(d) All of theseAnswer: d

Hook’s law is defined as(a) F and X are direct proportional(b) F and X are inverse proportional(c) F and X has no relation



(d) None of theseAnswer: a

In Hook’s law, K is the spring constant depending on the(a) Dimensions of spring(b) Material of spring(c) Applied force(d) All of theseAnswer: b

Sonar is the name of technique or detecting the presence of objects under water by(a) Eco-ranging(b) Eco-sounding(c) Eco-acoustical(d) All of theseAnswer: d

The military applications of Doppler’s effect are(a) Location of submarines(b) Control of anti submarine weapons(c) Depth measurement of sea(d) All of theseAnswer: d

Doppler affect can be used to calculate the speeds of(a) Planets(b) Distant stars(c) Galaxies(d) All of theseAnswer: b



If the stars are moving towards the earth show a(a) Red shift(b) Blue shift(c) Yellow shift(d) None of theseAnswer: b

If the stars are moving away from the Earth show a(a) Red shift(b) Blue shift(c) Green shift(d) None of theseAnswer: a

Bats navigate and find food by(a) Eco-sounding(b) Eco-location(c) Acoustical echo(d) None of theseAnswer: b

When the source is moving towards the observer at rest the apparent frequency will(a) Increased(b) Decreased(c) Both of above(d) None of theseAnswer: a



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Basic Concepts of Physics MCQs

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