# UPHESC Assistant Professor Exam 2021 Test Series: Physics Test 1 (Basic)

UPHESC Assistant Professor Exam 2021 Test Series: Physics Test 1 (Basic): UPHESC Assistant Professor Recruitment 2021- Uttar Pradesh Higher Education Services Commission has started accepting online application form for 2003 vacancies for Assistant Professor Posts on its official website @uphesconline.org from 27th February 2021. The notice includes the dates and events for UPHESC recruitment.

UP government is providing an opportunity for those candidates who are looking forward to teaching as their career. The online applications will be accepted by 26th March 2021.Bookmark this page and stay tuned with us for every latest update for UPHESC Assistant Professor Jobs 2021. UPHESC Assistant Professor Vacancy 2021 announced for 2003 Assistant Professor Post which includes 2002 posts of Assistant Acharya in 47 subjects and 01 post of Assistant Acharya Geoscience of Advertisement No. -46. The application form for UPHESC Assistant Professor 2021 began on 27 February 2021 and the last date to apply online is 26 March 2021.

#### U. P. HIGHER EDUCATION SERVICES COMMISSION, PRAYAGRAJ

1. Which among the following is measured using a Vernier Caliper?

[A] Dimensions
[B] Time
[C] Sound
[D] Temperature

2. Which among the following temperature scale is based upon absolute zero?

[A] Celsius
[B] Fahrenheit
[C] Kelvin
[D] Rankine

3. With reference to various properties of X-Rays, which among the following statements is / are correct?
1. The Hard X-Rays have a shorter wavelength than the Soft X-Rays
2.The X-Rays are deflected by the Electric Field, but are not deflected by the Magnetic Field
3.X-Rays don’t show many properties of light such as Refraction, diffraction, Interference and Polarization
choose the correct option from the codes given below:

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] Only 1

4. Which among the following can produce virtual image?

1. Converging lens
2. Concave Mirror
3. Flat Mirror

Select the correct option from the codes given below:

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 3
[D] 1, 2 & 3

5. With reference to the virtual images and real images, consider the following statements:
1. while real image can be obtained on screen, virtual image cannot be obtained on screen.
2. While real image is always inverted, virtual image is always erect
which among the above is / are correct statements?

[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2

6.Which of the following is / are correct statements about the Millimeter waves, sometimes seen in news?

1. These are among the highest radio frequency band
2. They have higher wavelength than Microwaves
3. They are most notably used in security appliances

Select the correct option from the codes given below:

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3

7. A motorboat directed upstream is seen to be at rest from the bank of a river. Which among the following is / are correct statement in this context?
1. In terms of Physics, the engine of the boat is doing work
2. In terms of Physics, the engine of the boat is not doing any work
3. If the engine stops, no work will be done
4. If engine stops, boat will gain kinetic energy
Select the correct option from the codes given below:

[A] Only 1 & 3
[B] Only 1, 3 & 4
[C] Only 2, 3 & 4
[D] Only 2 & 4

8. Which among the following keep changing for a body in uniform circular motion?
1. Speed
2. Amplitude
3. Velocity
4. Acceleration
Choose the correct option from the codes given below:

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 3 & 4
[D] Only 1 & 4

9. Consider the following statements:
1. A body at rest has no inertia
2. A body in free fall in vacuum has constant acceleration
3. A body in free fall in vacuum has diminishing kinetic energy
Which among the above is / are correct statements?

[A] Only 1 & 2
[B] Only 2
[C] Only 2 & 3
[D] 1, 2 & 3

10.The FM transmission of music is of very good quality in comparison to AM transmission. Consider the following statements with this reference:

1. The AM signals are more susceptible to noise
2. The FM receiver locks itself to catch stronger signal only
3. The wavelength of AM waves is much higher in comparison to the FM waves

Which among the above is / are correct statements?

[A] Only 1 & 2
[B] Only 1
[C] Only 2 & 3
[D] 1, 2 & 3

11.Which among the following comparisons of geostationary orbit and geosynchronous orbit is / are correct?

1. Geostationary orbit must be circular, Geosynchronous may not be circular
2. Geostationary orbit must be directly above equator, Geosynchronous orbit is not above equator
3. There is only one Geostationary orbit , while there can be many Geosynchronous orbits

Select the correct option from the codes given below:

[A] Only 1 is correct
[B] Only 2 & 3 are correct
[C] Only 1 & 3 are correct
[D] 1, 2 & 3 are correct

12.A Pendulum Clock, whose pendulum is made up of a steel rod, will become slow if__:
1. Temperature rises
2. Taken to moon
3. Taken from equator to pole
Choose the correct option from the codes given below:

[A] Only 1
[B] Only 1 & 2
[C] Only 2 & 3
[D] 1, 2 & 3

13.With reference to the mobile telephony, the USSD technology is increasingly being adopted in recent times for various services. How the USSD is different from SMS ?
1. While USSD maintains a continuous session so that users receive immediate response, SMS service can’t involve a continuous session
2. While per message length in USSD is 182 alphanumeric characters, it 160 alphanumeric characters for SMS
Choose the correct option from the codes given below:

[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2

14.Which among the following can hear the sound in the frequency range which human cannot hear?

1. Bats
2. Dogs
3. Dolphins

Select the correct option from the codes given below:

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3

15.While playing a flute, the flute player opens and closes the holes in the body of the flute to make changes in __:

1. Pitch
2. Resonant Frequency
3. Timbre

Select the correct option from the codes given below:

[A] Only 1 & 3
[B] Only 1 & 2
[C] Only 2 & 3
[D] 1, 2 & 3

16.If the time taken in an echo is 5 seconds, which among the following will be the approximate distance of the object from source of sound? (assume normal room temperature at 20°C)

[A] 1715 meters
[B] 1256 meters
[C] 857 meters
[D] 554 meters

17.Consider the following statements with respect to electromagnetic spectrum:

1. Gamma rays have higher frequency than X-rays.
2. Microwaves have a higher energy than radio waves.
3. Infrared has longer wavelengths than ultraviolet.

Which of the above statements is/are correct?

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3

18.If the frequency of a sound wave is reduced to half of its original value, then the speed of sound wave will:

[A] reduce to half of its original value
[B] double to that of its original value
[C] increase fourfold of its original value
[D] remain same

19.Consider the following statements:

1. Co-efficient of rolling friction is usually less than sliding friction.
2. Static friction is usually greater than sliding friction.

Which of the above statements is/are correct?

[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2

20.Consider the following physical quantities:

1. Speed
2. Velocity
3. Amplitude
4. Acceleration

Which of the above remain unchanged during Uniform Circular Motion?

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] Only 2 & 4

21.Due to which of the following phenomena, the coloured glass appears white when crushed into fine powder?

[A] Total Internal Reflection
[B] Diffraction
[C] Scattering
[D] Refraction

22.Which of the following can produce virtual images?

1. Concave lenses
2. Convex lenses
3. Concave mirror
4. Convex mirror
5. Plane mirror

Select the correct option from codes given below:

[A] 1, 3 & 5 Only
[B] 2, 3 & 5 Only
[C] 1, 2, 3 & 4 Only
[D] 1, 2, 3, 4 & 5

23.    Consider the following statements:

1. Speed of sound increases with increase in density of the medium
2. Speed of sound increases with increase in temperature of the medium

Which of the above statements is/are correct?

[A] 1 Only
[B] 2 Only
[C] Both 1 & 2
[D] Neither 1 nor 2

24.An Electric generator is based on which of the following scientific principles?

[A] Faraday’s law of Electromagnetic Induction
[B] Super Conductivity
[C] Laws of Thermodynamics
[D] Newton’s Law of Motion

25.Which of the following is NOT a unit for measuring pressure?

[A] bar
[B] torr
[C] Pascal
[D] shake

26.Which of the following is the unit of Solid Angle?

[C] m2
[D] π

27.1 nautical mile is equivalent to which of the following?

[A] 1.44 x 1000 m
[B] 1.852 x 100 m
[C] 1.852 x 1000 m
[D] 1.44 x 100 m

28.What is the S.I unit of Coefficient of Mutual inductance?

[A] weber
[B] candela
[C] henry
[D] lambert

29.kg m2is the unit of which of the following physical quantities?

[A] Linear Momentum
[B] Angular Momentum
[C] Angular Impulse
[D] Moment of Inertia

30.Which of these pairs has the same unit of measurement?

[A] Rate of flow and Acceleration
[B] Impulse and Moment of Force
[C] Rydberg constant and Gas constant
[D] Pressure and Coefficient of Elasticity

31.The inablity of a body to change its state of rest or motion is known as:

[A] Force
[B] Momentum
[C] Displacement
[D] Inertia

32.What is the relationship between Kinetic and limiting friction?

[A] Kinetic friction is slightly greater than limiting friction
[B] Kinetic friction is slightly less than limiting friction
[C] Kinetic friction is equal to limiting friction
[D] No relationship

33.The thrust on the rocket is:

[A] in the same direction of the rocket
[B] in the opposite direction of the rocket
[C] at 90° to the direction of the rocket
[D] None of the above

35.As per the Newton’s second law of motion, what is the relation between the rate of change of linear momentum and the external force applied?

[A] directly proportional
[B] inversely proportional
[C] independent of each other
[D] None of the above

36.Work done is defined as the dot product of which of the following vectors?

[A] Force and acceleration
[B] Force and area
[C] Force and instantaneous velocity
[D] Force and displacement

37.The work done in moving a body over a smooth inclined plane does not depend on which of the following?

[A] mass of the body
[B] height of the inclined plane
[C] slope of the inclined plane
[D] All of the above

38.As per the Kepler’s third law, the square of the time period of revolution of a planet is directly proportional to which of the following?

[A] semi-major axis of its elliptical orbit
[B] cube root of semi-major axis of its elliptical orbit
[C] square of semi-major axis of its elliptical orbit
[D] cube of semi-major axis of its elliptical orbit

39.The Universal Gravitational Constant for two bodies is dependent on which of the following?

[A] Nature of the bodies
[B] Size of the bodies
[C] Nature of medium between the bodies
[D] None of the above

40.What is the value of acceleration due to gravity at the centre of the earth?

[A] 1 N/kg
[B] 0
[C] -9.8 N/kg
[D] 9.8 N/kg

41.Which of the following is correct about Kinetic energy during the projectile motion?

[A] it is minimum at the point of projection
[B] it is minimum at the highest point
[C] it is maximum at the highest point
[D] it is minimum at the point of reaching the ground

42.The value of coefficient of limiting friction does not depend on which of the following?

[A] nature of the surfaces in contact
[B] total area of the surfaces in contact
[C] material of the surfaces in contact
[D] All of the above

43.Which of these is the force required to move a body uniformly in a circle?

[A] Centrifugal force
[B] Centripetal force
[C] Kinetic force
[D] None of the above

44.The Newton’s third law is applicable when:

[A] bodies are at rest
[B] bodies are in motion
[C] bodies are in the air
[D] bodies are at rest or in motion

45.The apparent weight of the body becomes zero in which of the following cases in the elevator?

[A] during free fall of a body under gravity
[B] when elevator is accelerating downwards
[C] when elevator is at rest
[D] when elevator is accelerating upwards

46.Which of the following is NOT correct about the velocity of rocket at any time?

[A] it is directly proportional to the exhaust speed of the gases
[B] it is directly proportional to the natural log of ratio of intial mass of rocket to its mass at that instant
[C] length of the rocket
[D] All of the above

47.The thrust on the rocket is:

[A] in the same direction of the rocket
[B] in the opposite direction of the rocket
[C] at 90° to the direction of the rocket
[D] None of the above

48.1 kilogram force produces how much acceleration in a body of mass 1 kg?

[A] 1 ms-2
[B] 0
[C] 9.8 ms-2
[D] -1 ms-2

49.Work done is defined as the dot product of which of the following vectors?

[A] Force and acceleration
[B] Force and area
[C] Force and instantaneous velocity
[D] Force and displacement

50.Work done will NOT be zero in which of the following case/cases?

[A] When displacement is zero
[B] When angle between force and displacement vector is zero
[C] When angle between force and displacement vector is 90°
[D] When force is zero

51.What happens to a body when its density is greater than the density of the fluid?

[A] it floats
[B] it sinks
[C] it stays at rest
[D] None of the above

52.Which of the following is NOT an application of principle of floatation?

[A] Ships
[B] Balloons
[C] Submarines
[D] None of the above

53.Which of the following represents the condition for floatation?

[A] Fb = mg
[B] Fb + mg =0
[C] Fb/ mg =1
[D] Fb = mgh

54.Which of the following is correct about Surface Tension?

[A] It is a scalar quantity
[B] It is a molecular phenomenon
[C] Its root cause is the electromagnetic forces
[D] All of the above

55.Which is correct about the height of a capillary column of a liquid, at a particular temperature, as per Jurin’s law?

[A] equal to the diameter of the tube
[B] directly proportional to the diameter of the tube
[C] inversely proportional to the diameter of the tube
[D] half of the diameter of the tube

56.What will be the change in the height of water in a capillary tube in stationary condition on earth if the same tube is taken in a lift going downward with acceleration?

[A] height increases
[B] height decreases
[C] Remains same
[D] can decrease or increase

57.What happens to the viscosity of a liquid with increase in temperature?

[A] it increases
[B] it decreases
[C] it may increase or decrease
[D] No change

58. Which of the following systems of units is not based on units of mass, length and time alone?

[A] SI

[B] MKS

[C] CGS

[D] FPS

59. Mass is the measure of

[A] Matter contained

[B] Weight

[C] Force

[D] None of these

60. Among the following the derived quantity is

[A] Mass

[B] Length

[C] Density

[D] Time

61. Which of the following is not a fundamental unit?

[A] Newton

[B] Kilogram

[C] Metre

[D] Second

62. In SI units the numbers of basic physical quantities are?

[A] 3

[B] 7

[C] 9

[D] 21

63. Light year is?

[A] Light emitted by the sun in one year

[B] Time taken by light to travel from sun to earth

[C] The distance travelled by light in free space in one year

[D] Time taken by earth to go once around the sun

64. One micron equals to

[A] 10−3m

[B] 10−9m

[C] 10−6m

[D] 10−2m

65. Practical unit of heat is

[A] Calorie

[B] Horse power

[C] Joule

[D] Watt

66. Match List I (Units) with List II (Physical quantity) and select the Answer using the codes given below the lists.

[A] A-1,   B-4,   C-1,   D-3

[B] A-1,   B-2,   C-3,   D-4

[C] A-1,   B-2,   C-4,   D-3

[D] A-2,   B-4,   C-3,   D-1

67. Match List I (Physical quantity) with List II (Units) and select the Answer using the codes given below the lists.

[A] A-4,   B-5,   C-1,   D-3

[B] A-4,   B-5,   C-1,   D-2

[C] A-5,   B-4,   C-1,   D-2

[D] A-5,   B-4,   C-2,   D-3

68. What is the correct sequence in which the lengths of the following units increase?

Select the Answer using the code given below:

[A] 1, 2, 3

[B] 3, 1, 2

[C] 1, 3, 2

[D] 2, 3, 1

69. Which one of the following is not a dimension less quantity?

[A] Strain

[B] Relative density

[C] Frequency

[D] Angle

70. Match List ‘I’ (Physical quantity) with list II (Dimension) and select the Answer by using the codes given below the lists.

[A] A-3,   B-2,   C-4,   D-1

[B] A-1,   B-2,   C-3,   D-4

[C] A-2,   B-1,   C-4,   D-3

[D] A-3,   B-2,   C-1,   D-4

71. S.I. unit of surface tension is

[A] degree/cm

[B] N/m

[C] N/m2

[D] N m

72. Match List I (Physical quantity) with list II (Units) and select the Answer by using the codes given below the lists.

[A] A-2,   B-4,   C-3,   D-1

[B] A-2,   B-3,   C-4,   D-1

[C] A-1,   B-4,   C-3,   D-2

[D] A-1,   B-3,   C-4,   D-2