[{"id":163063,"question":"At what place , motion of a simple pendulum will be the slowest:","choices":[{"text":"On the surface of the earth","value":"A"},{"text":"All of the centre of earth","value":"B"},{"text":"At the quarter","value":"C"},{"text":"Both B and C","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":163062,"question":"Time period of a simple pendulum at certain placed depends upon:","choices":[{"text":"Mass of the bob","value":"A"},{"text":"Amplitude","value":"B"},{"text":"Material of the bob","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":163061,"question":"At which place simple pendulum will vibrate the slowest?","choices":[{"text":"Muree","value":"A"},{"text":"Karachi","value":"B"},{"text":"Mount Everest","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":163060,"question":"If length of the second's pendulum is denoted by L<sub>1</sub>then the length of a pendulum having a period of 1 second is:","choices":[{"text":"L/2","value":"A"},{"text":"2 L","value":"B"},{"text":"L / 4","value":"C"},{"text":"4 L","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":163059,"question":"The time period of a simple pendulum does not depend upon.","choices":[{"text":"Amplitude","value":"A"},{"text":"Mass","value":"B"},{"text":"Length","value":"C"},{"text":"Both A and B","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":163058,"question":"If time period of a pendulum is doubled by increasing its length, then its frequency will:","choices":[{"text":"Also be doubled","value":"A"},{"text":"Become half","value":"B"},{"text":"Become one fourth","value":"C"},{"text":"Becomes four times","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":163057,"question":"Pendulums having same lengths will vibrate with:","choices":[{"text":"Same frequency","value":"A"},{"text":"Different periods","value":"B"},{"text":"Differnet freqeuncies","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":163056,"question":"If L is length of a simple pendulum and T is its time period, then graph between different values of L and T<sup>2</sup> will be","choices":[{"text":"A curve","value":"A"},{"text":"A straight line","value":"B"},{"text":"A sine curve","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":163055,"question":"if ratio of time periods of two pendulum is 1:2 then the ratio of their length will be:","choices":[{"text":"4 : 1","value":"A"},{"text":"1 : 2","value":"B"},{"text":"1 : 4","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":163054,"question":"When the bob of a simple pendulum is at extreme position, K.E.is _____ and P.E. is ________________.","choices":[{"text":"Maximum, zero","value":"A"},{"text":"Minimum, zero","value":"B"},{"text":"zero , maximum","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":163053,"question":"While determining the time period of simple pendulum, we keep the amplitude:","choices":[{"text":"Large","value":"A"},{"text":"Small","value":"B"},{"text":"Zero","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":163052,"question":"A body of mass 0.031 kg attached to one end of a spring of spring constant 0.3 N/m, then time period of spring mass system will be:","choices":[{"text":"1.5 sec","value":"A"},{"text":"2.0 sec","value":"B"},{"text":"2.3 sec","value":"C"},{"text":"2.5 sec","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":163051,"question":"A mass attached to a spring vibrates with a frequency of 0.6 cycles/sec. Its angular velocity W comes out to be :","choices":[{"text":"3.77 red/sec","value":"A"},{"text":"10.4 red/sec","value":"B"},{"text":"1.67 red/sec","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":163050,"question":"A mass attached to a spring completes 60 vibrations in half minute. Its frequency is:","choices":[{"text":"120 Hertz","value":"A"},{"text":"60 Hertz","value":"B"},{"text":"30 Hertz","value":"C"},{"text":"2 Hertz","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":163049,"question":"Half wavelength corresponds to:","choices":[{"text":"0<sup>o</sup>","value":"A"},{"text":"90<sup>o</sup>","value":"B"},{"text":"180<sup>o</sup>","value":"C"},{"text":"360<sup>o</sup>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":163048,"question":"A body complete 20 vibrations in one minute, tis time period wil be:","choices":[{"text":"0.05 sec","value":"A"},{"text":"1.5 sec","value":"B"},{"text":"3.0 sec","value":"C"},{"text":"20 seconds","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":163047,"question":"A Complete circle is equivalent to:","choices":[{"text":"Full wavelength","value":"A"},{"text":"Half wavelength","value":"B"},{"text":"Quarter wavelength","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":163046,"question":"In case of spring-mass system, the ratio of the applied force to the displacement is called:","choices":[{"text":"Planck's constant","value":"A"},{"text":"Decay constant","value":"B"},{"text":"Spring constant","value":"C"},{"text":"4 Acceleration","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":163045,"question":"The change in length of the spring in a spring -mass system is directly proportional to:","choices":[{"text":"Frequency","value":"A"},{"text":"Applied force","value":"B"},{"text":"Velocity","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":163044,"question":"An oscillating body oscillates due to:","choices":[{"text":"Applied force","value":"A"},{"text":"Restoring force","value":"B"},{"text":"Fricntional force","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":163043,"question":"An angle of 180<sup>o</sup>in circular motion is equivalent to _______ in SHM.","choices":[{"text":"Half the vibration","value":"A"},{"text":"One vibration","value":"B"},{"text":"3/4th of a vibration","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":163042,"question":"In SHM, the acceleration is _________ when velocity is____.","choices":[{"text":"Zero, smallest","value":"A"},{"text":"Smallest, zero","value":"B"},{"text":"Zero, Zero","value":"C"},{"text":"Zero, greatest","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":163041,"question":"An object in SHM will have maximum speed when its displacement from equilibrium position is :","choices":[{"text":"Infinity","value":"A"},{"text":"Maximum","value":"B"},{"text":"Zero","value":"C"},{"text":"Minimum","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":163040,"question":"Hertz is unit of :","choices":[{"text":"Time period","value":"A"},{"text":"Displacement","value":"B"},{"text":"amplitude","value":"C"},{"text":"Frequency","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":163039,"question":"In SHM there is always a constant ratio between displacement of a body and its:","choices":[{"text":"Velocity","value":"A"},{"text":"Period","value":"B"},{"text":"Mass","value":"C"},{"text":"Acceleration","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":163038,"question":"If a mass of 10 gm is suspended from a spring of k= 9.8 Nm<sup>-1</sup>, then the extension will be","choices":[{"text":"1 cm","value":"A"},{"text":"1 m","value":"B"},{"text":"10 mm","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":163037,"question":"The time taken to complete one vibration is called:","choices":[{"text":"Frequency","value":"A"},{"text":"Amplitude","value":"B"},{"text":"Time","value":"C"},{"text":"Time period","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":163036,"question":"Amplitude in SHM is equivalent to___________ in circular motion.","choices":[{"text":"Diameter","value":"A"},{"text":"Radius","value":"B"},{"text":"Circumference","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":163035,"question":"The graph showing the variation of displacement with time is a:","choices":[{"text":"Sine curve","value":"A"},{"text":"Straight line","value":"B"},{"text":"Parabola","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":163034,"question":"The SI unit of spring constant is identical with that of:","choices":[{"text":"Force","value":"A"},{"text":"Surface tension","value":"B"},{"text":"Pressure","value":"C"},{"text":"Loudness","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":163033,"question":"When the mass attached to a spring begins to move left or right from the equilibrium position, its P.E.","choices":[{"text":"Increases","value":"A"},{"text":"Decreases","value":"B"},{"text":"Remain constant","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":163032,"question":"Which one of the following is an example of SHM.","choices":[{"text":"Motion in a plane","value":"A"},{"text":"Motion in swing","value":"B"},{"text":"Motion in a car","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":163031,"question":"The unit of spring constant is:","choices":[{"text":"J-Sec","value":"A"},{"text":"Metre","value":"B"},{"text":"Nm<sup>-1</sup>","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":163030,"question":"To and fro motion of a body about its mean position is known as:","choices":[{"text":"Translatory motion","value":"A"},{"text":"Vibratory motion","value":"B"},{"text":"Rotatry motion","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":163029,"question":"If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:","choices":[{"text":"2500 MHz","value":"A"},{"text":"0.25 MHz","value":"B"},{"text":"2500 KHz","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":163028,"question":"Free oscillations are always produced by:","choices":[{"text":"An applied force","value":"A"},{"text":"Gravitational force","value":"B"},{"text":"Restoring force and inertia","value":"C"},{"text":"Inertia only","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":163027,"question":"Second pendulum is the pendulum whose time period is:","choices":[{"text":"1 second","value":"A"},{"text":"2 seconds","value":"B"},{"text":"3 seconds","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":163026,"question":"The stirng of a simple pendulum should be","choices":[{"text":"Heavy","value":"A"},{"text":"Extensible","value":"B"},{"text":"Inextensible","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":163025,"question":"The time period of a simple pendulum is independent of its:","choices":[{"text":"Length","value":"A"},{"text":"Mass","value":"B"},{"text":"Value of g","value":"C"},{"text":"Both A and B","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":163024,"question":"A body of mass 0.031 kg attached to one end of a spring of spring constant 0.3 N/m , then time period of spring mass system will be:","choices":[{"text":"1.5 sec","value":"A"},{"text":"2.0 sec","value":"B"},{"text":"2.3 sec","value":"C"},{"text":"2.5 sec","value":"D"},{"value":"E"}],"correctAnswer":2}]