Objective Type Physics Questions for Entrance Exams class 2

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 © Written By Lovepreet Singh Grewal 

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Frequently asked Physics Questions and Answers for Competitive Exams

Q.1 Which of the following measurements is not a unit of distance?  

(A) Ammeter
(B) Cubit
(C) Parsec
(D) angstrom

Ans. A

Q.2 Which one of the following remains constant while throwing a ball upward?  

(A) Displacement
(B) Kinetic energy
(C)  Acceleration
(D)   Velocity

Ans. C

Q.3 Pure water freezes at what temperature?  

(A) 47 F
(B) 32 F
(C)  0 F
(D)   19 F

Ans. B

Q.4 Which vitamin is abundant in citrus fruits?  

(A) Vitamin A
(B) Vitamin B
(C)  Vitamin C
(D)   Vitamin D

Ans. C

Q.5 Zinc Oxide is  

(A) Acidic
(B) Basic
(C)  Neutral
(D)   Amphoteric

Ans. D

Q.6 Pure water is a _____________ Conductor of electricity.  

(A) super conductor
(B) bad conductor
(C)  speed conductor
(D)   None of these

Ans. B

Q.7 What element’s three isotopes have different names?  

A. Helium
B. Oxygen
C. Carbon
D. Hydrogen

Ans. D

Q.8 On which one of the following conservation laws, does a rocket work?  

(A) Mass
(B) Energy
(C)  Linear momentum
(D)   Angular momentum

Ans. C

Q.9 Which one among the following radiations carries maximum energy?  

(A) Ultraviolet rays
(B) Gamma rays
(C)  X- rays
(D)   Infra red rays

Ans. B

Q.10 The Central Arid Zone Research Institute (CAZRI) is located at  

(A) Jaipur
(B) Jodhpur
(C)  Jaisalmer
(D)   Jallandhar

Ans. B

Q.11 What is the main constituent of coal gas?  

(A) Oxygen
(B) Water
(C)  Nitrogen
(D)   Methane

Ans. C

Q.12 Recoil of a gun is an example of  

(A) Conservation of mass
(B) conservation of energy
(C)  conservation into KE
(D)   conservation of linear momentum

Ans. D

Q.13 What is the heaviest of the naturally occurring Noble gases?  

(A) Radon
(B) Xenon
(C) Helium
(D) Argon

Ans. A

Q.14 Aviation fuel for Jet aero planes consists of purified  

(A) Petrol
(B) Kerosene
(C) Gasoline
(D) Diesel

Ans. B

Q.15 A piece of stone and or iron traveling through space that moves through the earth’s atmosphere is  

(A) Planet
(B) Sun
(C) Moon
(D) Meteor

Ans. D

Q.16 Which one of the following common devices works on the basis of the principle of mutual induction?  

(A) Tube light
(B) Transformer
(C) Photodiode
(D) Led

Ans. B

Q.17 Dc current can be controlled by which one of the following components?  

(A) Impedance
(B) Resistance
(C) Capacitance
(D) Inductance

Ans. B

Q.18 Mesons are found in  

(A) Alpha -rays
(B) Laser beam
(C) X – rays
(D) Cosmic rays

Ans. D

Q.19 A moderator is used in nuclear reactors in order to  

(A) increase the motoneurons
(B) decrease the motoneurons
(C) slow down the speed of neutrons
(D) Anthony S. D’Mello

Ans. C

Q.20 The wavelength of X-rays is of the order of  

(A) 1 cm
(B) 1 m
(C) 10 micron
(D) 1 Angstrom

Ans. D

Q.21 In a sitar wire which one of the following types of vibration is produced?  

(A) Progressive longitudinal
(B) Stationary longitudinal
(C) Progressive transverse
(D) Stationary transverse

Ans. A

Q.22 Which gas in the atmosphere saves us from the ultra violet rays of the sun?  

(A) Nitrogen
(B) Oxygen
(C) Ozone
(D) Carbon Monoxide

Ans. C

Q.23 What is the study of plants called?  

(A) Physics
(B) Chemistry
(C) Zoology
(D) Biology

Ans. D

Q.24 The three methods of science are observation, experimentation and  

(A) Hypothesis
(B) Measurement
(C) Deduction
(D) inference

Ans. B

Q.25 If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then both bodies acquire the same.

(A) velocity

(B) kinetic energy

(C) acceleration

(D) momentum

Ans. D

Q.26 Pick out the scalar quantity

(A) force

(B) pressure

(C) velocity

(D) acceleration

Ans. B

Q.27 Rectifiers are used to convert

(A) Direct current to alternating current

(B) alternating current to direct current

(C) high voltage to low voltage

(D) low voltage to high voltage

Ans. B

Q.28  _____Of the following properties of a wave, the one that is independent of the other is its.

(A) amplitude

(B) velocity

(C) wavelength

(D) frequency

Ans. A

Q.29 Find the maximum velocity for the overturn of a car moving on a circular track of radius 100m. The co-efficient of friction between the road and tyre is 0.2.

(A) 0.14 m/s

(B) 140 m/s

(C) 1.4 m/s

(D) 14 m/s

Ans. D

Q.30 It is more difficult to walk on a sandy road than on a concrete road because

(A) sand is soft and concrete is hard

(B) the friction between sand and feet is less than that between concrete and feet

(C) the friction between sand and feet is more than that between concrete and feet

(D) the sand is grainy but concrete is smooth

Ans. B

Q.31 Magnetism at the centre of a bar magnet is

(A) minimum

(B) maximum

(C) zero

(D) minimum of maximum

Ans. C

Q.32 Out of the following which is not emitted by radioactive substance?

(A) Electrons

(B) Electromagnetic radiations

(C) Alpha particles

(D) Neutrons

Ans. D

Q.33 Lux is the SI unit of

(A) intensity of illumination

(B) luminous efficiency

(C) luminous flux

(D) luminous intensity

Ans. A

Q.34 On a rainy day, small oil films on water show brilliant colours. This is due to

(A) dispersion

(B) interference

(C) diffraction

(D) polarization

Ans. B

Q.35 Point A is at a lower electrical potential than point B. An electron between them on the line joining them will.

(A) move towards A

(B) move towards B

(C) move at right angices to the line joining A and B

(D) remain at rest

Ans. B

Q. 36 Material for rain-proof coats and tents owe their water-proof properties to

(A) surface tension

(B) viscosity

(C) specific gravity

(D) elasticity

Ans. A

Q.37 RADAR is used for

(A) locating submerged submarines

(B) receiving a signal in a radio receiver

(C) locating geostationary satellites

(D) detecting and locating the position of objects such as airplanes

Ans. D

Q.38 Sound of frequency below 20 Hz is called.

(A) audio sounds

(B) infrasonic

(C) ultrasonic

(D) supersonics

Ans. B

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