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Quiz 4
Mdcat-past-papers - SZABMU - Physics Quiz
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Board: SZABMU | Subject: Physics |
61. At what angle the curved path should be banked if a car is moving with a speed of 12m/s at a radius 36m?
10°
15°
20°
22°
62. Which one of the following provides centripetal force in a circular motion of the body?
Vertical component of weight
Horizontal component of weight
Weight of the body
Force of friction
63. Time period of a vibrating body is independent of:
Frequency
Amplitude
Wavelength
Value of g
64. In SHM, a ∝ −x, the negative sign indicates that:
Acceleration is decreasing
Acceleration is directed away from equilibrium
Acceleration is directed towards equilibrium
Acceleration is zero at extreme position
65. A wave generator produces 100 pulses in 10s. Frequency of pulse will be:
100 pulses/s
10 pulses/s
1 pulse/s
0 pulse/s
66. Wavelength of a wave is defined as:
Distance between two consecutive crests
Distance between two alternate crests
Distance between two alternate troughs
Distance between crest and trough
67. Maximum displacement of particles from its mean position is called:
Wavelength
Amplitude
Trough
Crest
68. The ultrasonic waves have frequency higher than:
20 Hz
20 kHz
200 Hz
2000 kHz
69. Continuous, regular and rhythmic disturbance of a source causes ___ in the medium.
Complex waves
Stationary waves
Electromagnetic waves
Periodic waves
70. A wave generator produces 500 pulses in 50 s. Its frequency will be:
10 s⁻¹
0.1 s⁻¹
500 s⁻¹
50 s⁻¹
71. Amplitude in the following figure is given as:
2 m
½ m
¼ m
1 m
72. The product of "T" and "f" of a wave is equal to:
Zero
1
2
3
73. Wavelength λ can be found:
λ = v/f
λ = 1/d
λ = 1/T
λ = v/f
74. The increase in the speed of sound for each degree rise above 0°C is:
0.61 m/s
0.31 m/s
0.41 m/s
0.31 m/s
75. Which of the following factor does not affect the speed of sound in air?
Pressure
Density
Temperature
Medium
76. The speed of sound in air is 332m/s at 0°C. What will be its value at 10°C?
332ms⁻¹
338.1ms⁻¹
332.61ms⁻¹
334.1ms⁻¹
77. Which of the following factors does not affect the speed of sound in air?
Density of gas
Moisture in air
Temperature
Pressure of gas
78. Which of the following factors does not affect the speed of sound in air?
Density of gas
Moisture in air
Temperature
Pressure of gas
79. Speed of sound is 332ms⁻¹ at 0°C. What will be its value at 10°C?
3320ms⁻¹
3381 ms⁻¹
332.2 ms⁻¹
332.1 ms⁻¹
80. In moist air (humidity), the speed of sound waves:
Increases
Decreases
Remain same
Zero
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