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Quiz 4
Mdcat-past-papers - NMDCAT Quiz
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Board: NMDCAT |
61. Unit of angular displacement is:
Rad
Meter
Pie
Meter/sec
62. If during circular motion, tangential velocity of a body becomes double, the centripetal force:
same
double
four times
eight times
63. Centripetal force is directed towards:
Center of circle
Perpendicular to circle
Tangent of circle
Along the circular path
64. A car turning around a circular path, centripetal force is given by:
Gravity
Friction
Both
None of these
65. Example of longitudinal wave is:
Sound wave
Light wave
Electromagnetic wave
Water wave
66. Which one requires no medium to propagate?
X-rays
Gamma rays
Beta rays
All need no medium
67. Which of the following does not travel in vacuum?
Sound waves
Light waves
Transverse waves
All of above
68. In a ripple tank, 200 waves pass through a certain point in one second. The wavelength of each wave is 0.02 m. What is the wave speed?
4 m/s
2 m/s
6 m/s
8 m/s
69. The speed of sound in air is 332m/s. The speed of sound at 22°C will be:
345.2m/s
340 m/s
350 m/s
330 m/s
70. Speed of sound does not depend upon:
Density
Temperature
Pressure
Depend on all
71. In a ripple tank, 40 waves pass through a point in 1 sec. If wavelength is 5cm, speed is:
0.5 m/s
1 m/s
1.5 m/s
2 m/s
72. Time period if frequency is 4Hz is:
4
¼
2.5
4-Feb
73. The sum of all forms of (kinetic and potential) of a substance is termed as?
Internal energy
Elastic energy
Heat energy
Absolute energy
74. In which process the entire heat supplied to the gas is converted to the internal energy of the gas?
Isochoric process
Isobaric process
Isothermal process
Adiabatic process
75. The internal energy of a gas during an isothermal process:
Decreases
Increases
Becomes Zero
Remain constant
76. The thermodynamic process during which volume of the system remains constant is:
Isothermal
Isobaric
Isochoric
Adiabatic
77. For three moles of a gas Cp − Cv is:
R
3R
3/2R
2/3R
78. Which one is true about Cp and Cv:
Cp > Cv
Cv > Cp
Cv = Cp
both a & c are correct
79. The property due to which a substance attracts or repels other body is called:
Current
Charge
Magnetic field
All are correct
80. Force exerted by unit charge is called:
Charge density
Electric flux density
Electric field strength
Magnetic field
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