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Physics Fsc Part 1 Full Book Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | The compressions and elongations are formed in. |
<p>Particle waves</p> <p>Longitudinal waves</p> <p>Statinary waves</p> <p>Transverse waves</p> |
| 2 | The Doppier Effect used in astronomy is for. |
<p>Measuring the diameners of stars</p> <p>Determing velocity of galaxies</p> <p>Analyzing properties of black holes</p> <p>Studying behaviour of electromagnetic waves</p> |
| 3 | The bending of waves around an obstacle is called. |
<p>Refraction </p> <p>Reflection </p> <p>Diffraction </p> <p>Interference</p> |
| 4 | What type of waves do headphones use to produce sound |
<p>Electromagnetic waves</p> <p>Mechancial waves</p> <p>Pressure waves</p> <p>Longitudinal waves</p> |
| 5 | If the amplitude of the wave is tripled. then the amount of energy is increased by |
<p>3 times</p> <p>6 times</p> <p>9 times</p> <p>12 times</p> |
| 6 | The result of constructive interference between two waves is represented as. |
<p>A decrease in amplitude</p> <p>An increase in amplitude</p> <p>No change in amplitude</p> <p>A shift in phase</p> |
| 7 | Harmonics are |
<p>Integer multiple sof a fundamental frequency</p> <p>Integer submultiples of a fundamental frequency</p> <p>Random frequencies</p> <p>Non integer multiples of a fundamantal frequency</p> |
| 8 | Stationary waves are define das. |
<p>Waves that move with a constant velocity</p> <p>Waves that move with a changing velocity</p> <p>Waves that oscillate ina fixed position </p> <p>Waves that propagate through a medium</p> |
| 9 | A notde in a stationary wave is. |
<p>A point of maximum displacement</p> <p>A point of intermediate displacement </p> <p>A point ofzero displacement</p> <p>A point of infiinte displacement</p> |
| 10 | The principle of superposition in waves is stated as. |
<p>The displacemnt of wave is the sum of the displacement of its individual components</p> <p>The velocity of a wave is the product of its indivisudla components</p> <p>The frequency of a wave is the differecne of tis individual componetns </p> <p>The amplitude of a wave is the rato of its individual components</p> |
| 11 | What can be calculated from the curve under PV graph. |
<p>Heat</p> <p>Work done</p> <p>Temperatures</p> <p>Internal energy</p> |
| 12 | Work done by the system is takn as |
<p>Positive</p> <p>Negative</p> <p>Undefined</p> <p>None of these</p> |
| 13 | The efficiency of carnot eninge is always. |
<p>Greater than real engine</p> <p>Less than real engine</p> <p>Equal to the real engine</p> <p>Both a and b</p> |
| 14 | The efficiency of carnot engine depends upon |
<p>Sink temperature</p> <p>Source temperature</p> <p>Both a and b</p> <p>The working substance</p> |
| 15 | In carnot engine, each process is. |
<p>Reversible</p> <p>Preferable Reversible</p> <p>Irreversible</p> <p>Perfectly irreversible</p> |
| 16 | Effeciency of a carnot engine is. |
<p>Infinite</p> <p>Ten</p> <p>Greater than 1</p> <p>Less Than</p> |
| 17 | Carnot Cycle is |
<p>Reersible</p> <p>Irreversible</p> <p>Both</p> <p>Cp - Cv = R</p> |
