All Exam Soloutions And Notes: FSc ICS MCAT ECAT Physics First Year Chapter 1

FSc ICS MCAT ECAT Physics First Year

Both Bold and Underlined option is correct

1. The branch of physics "wave mechanic"introduced by:

Einstein
Max Plank
De-broglie
Bohr

2. Physicists started believing that every thing about physics has been discovered by the end of:

20 th century
19 th century
15 th century
None of these

3. Pascal is famous for his work:

Hydrostatics
Hydrodynamics
Laws of gases
Behaviour of elastic bodies

4. Systems international (SI) was established in:

1960
1967
1971
1930

5. The basic quantity among following is:

Torque
Force
Mass
Velocity

6. Which one of the scientist made some contribution to geometrical optics:

Archimedes
Pythagoras
Euclid
Plato

7. Which of the following is the derived quantity:

Time
Area
Length
Mass

8. Which of the following is set of supplementary units:

Radian & kilogram
Steradian & time
Mole & radian
Radian & steradian

9. The SI unit for measuring plane angle is:

Radian
Steradian
Both first and second
None of these

10. The present standard meter is defined as:

The distance between two points on an alloy bar
The length of mean solar day
The length equal to 1650763.73 wavelength of krypton 86-atom
The distance travel by the light in vacuum during a time of 1/299792458 second

11. The system international (SI) built up from:

Derived units
Basic units
Supplementary units
All of these

12. One mile is equal to:

1.625 km
1.609 km
1.325 km
1.850 km

13. One inch is equal to:

1.32 cm
25.4 cm
2.10 cm
2.54 cm

14. One foot is equal to:

31.90 cm
30.84 cm
30.48 cm
84.30 cm

15. Number of nano second in a year is:

3.1536 * 10(7)
3.1536 * 10(9)
3.1536 * 10(16)
None of these

16. One year is equal to:

3.2 * 10(7) sec
2.25 * 10(7) sec
3.35 * 10(7) sec
All of these

17. Light year is the unit of:

Light
Time
Velocity
Distance

18. The unit of thermodynamic temperature is:

K
C
F
None of these

19. One atto is:

10(-20)
10(-16)
10(-14)
10(-18)

20. One femto is:

10(-16)
10(-12)
10(-15)
10(-9)

21. The number of significant figure in 8.80 * 10(6) kg is:

22. The number 64.350 is rounded off as:

64.35
64.46
64.36
64.4

23. In scientific notation, the number 0.01 may be written as:

10(-2)
10(-4)
10 * 10(-4)
1 * 10(-4)

24. If length = 0.233 m and width = 0.178 m, the most accurate area expressed space of significant figures is:

0.041 m(2)
0.0415 m(2)
0.041747 m(2)
None of these

25. The number 0.0001 in scientific notation is:

1 * 10(4)
10(-3)
10 * 10(4)
10(-4)

26. One mega is equal to:

10(6)
10(-6)
10(3)
10(9)

27. The error in a certain measurement occurs due to:

Negligence of a person
Inappropriate technique
Faulty apparatus
All of the above

28. The uncertainty may occur due to:

Limitation of an instrument
Natural variance of the object
Personal negligence
All of the above

29. The least count of a unit meter rod is:

0.01 cm
0.01 mm
Cannot be zero
Can be zero

30. The number of base units in SI are:

Four
Five
Six
Seven

31. Deca, deci and mega, respectively mean:

10(1), 10(-1), 10(6)
10(6), 10(-1), 10(1)
10(6), 10(1), 10(-1)
10(1), 10(6), 10(-1)

32. 134.7 should be written in scientific notation as:

134.7
13.45 * 10(1)
1.347 * 10(2)
0.1347 * 10(3)

33. Pico, kilo and terra mean:

10(-12), 10(-3), 10(-18)
10(18), 10(3), 10(-12)
10(-12), 10(3), 10(12)
10(18), 10(-12), 10(3)

34. The average time the Earth takes to make exactly one rotation about its axis is defined as:

A solar hour
A solar day
A light year
A solar month

35. The distance x determined by the difference between two separate position measurements x1 = 10.5 +-(0.1) cm and x2 26.8 +-(0.1) cm. Then x will be recorded as:

16.3 cm
16.3 +-(0.1) cm
16.3 +-(0.2) cm
16.3 +-(0.01) cm

36. The length of a line was measured with a meter scale of least count = 1 mm by four students. The correct reading will be:

0.5426 m
0.542 m
0.54 m
0.5 m

37. Name the scientist who was awarded the Nobel Prize in physics in 1936 for the discovery of the positron:

Chadwick
Femi
Anderson
Einstein

38. The density of mercury is 13600 kg/m(3). Its value in CGS system will be:

13.6 g/cm(3)
1360 g/cm(3)
136 g/cm(3)
1.36 g/cm(3)

39. The unit of force and length are doubled, the unit of energy will be:

1/2 times
1/3 times
2 times
4 times

40. The dimensional formula [ML(0)T(-3)] is more closely associated with:

Power
Energy
Intensity
Velocity gradient

41. Which dimensions will be the same as that of time?

LC
R / L
L / R
C / L

42. Angular momentum has the same dimensions as:

Plank's constant
Universal gravitational constant
Rydberg constant
Boltzmann constant

43. Which of the two have same dimensions?

Force and strain
Force and stress
Angular velocity and frequency
Energy and strain

44. A student measured the diameter of a wire using a screw gauge with least count 0.001 cm and listed the measurements. The correct measurement is:

5.320 cm
5.3 cm
5.32 cm
5.3200 cm

45. Zero error belongs to the category of:

Constant errors
Personal errors
Instrumental errors
Accidental errors

46. Which one is the least sub-multiple?

pico
femto
atto
nano

47. In which system, the unit of force is a base unit:

SI system
CGS system
British engineering system
MKS system

48. Which of the following cannot be expressed as Nm(-2):

Pressure
Stress
Surface tension
Bulk modulus of elasticity

49. Which of the following units is used to measure the radius of nucleus?

Micron
Nanometer
Angstrom
Femtometer

50. Which of the following is not equal to watt?

Joule / second
Ampere * Volt
Ampere(2) * ohm
Ampere / volt

51. Temperature can be expressed as a derived quantity in terms of any of the following:

Length and mass
Mass and time
Length, mass and time
In terms of none of these

52. erg/m can be the unit of the measure of:

Force
Momentum
Power
Acceleration

53. IF the radius of the Earth shrinks by 1.5% (mass remaining same) then the value of acceleration due to gravity changes by:

54. Which of the following readings taken by microscope of least count 0.001 cm is correct?

3.28
3.00
3.000
0.02345

55. Which of the following is not a base unit in SI system:

Temperature
Amount of substance
Light intensity
Area

56. The minimum number of physical quantities which define other physical quantities is SI system are:

Two
Three
Five
Seven

57. Which of the following is not a unit of time:

Leap year
Light year
Lunar month
Micro second

58. Three dimensional angel subtended at the center of the sphere by an area of its surface equal to the square of radius of the sphere is called:

Radian
Steradian
Degree
All of the above

59. The ratio of 1 nanometer to 1 attometer is equal to:

1 peta
1 tera
1 giga
1 mega

60. A precise measurement is the one which has:

Less absolute uncertainty
Less percentage uncertainty
Large fractional uncertainty
Large absolute uncertainty

61. The accuracy of measurement depends on:

Absolute uncertainty
Percentage uncertainty
Quality of the instrument
Calibration of the scale

62. Number of significant figure with increasing degree of approximation:

Decreases
Increases
Remains unchanged
None of the above

63. Solid angle subtended at the center by a sphere is:

2 π
4 π
6 π
8 π

64. A second pendulum strikes in a day:

3600 times
86400 times
43200 times
0.003 sec

65. The density of wood is 0.5g/cm(3) in CGS system of units. The corresponding value in SI units is:

500 kg/m(3)
5 kg/m(3)
0.5 kg/m(3)
5000 kg/m(3)

66. Physical quantity is/are:

Time
Density
Temperature
All

67. The error is constant for _______ error.

Random
Systematic
Both first and second
All

68. For 2450 number of significant digits:

69. Which of the following could be measured in the same units as force?

Energy / Distance
Energy * Distance
Energy / Time
Momentum * Distance

70. What is the ratio 1 micrometer / 1 Giga meter

10(-3)
10(-6)
10(-12)
10(-15)

All Exam Soloutions And Notes

Pages

Sunday 3 July 2016

FSc ICS MCAT ECAT Physics First Year Chapter 1

FSc ICS MCAT ECAT Physics First Year

Both Bold and Underlined option is correct

No comments:

Post a Comment

Biology Important Long Question 2018