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Physics Fsc Part 1 Full Book Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | We van polarize the light by passing it through. |
<p>Water</p> <p>Polaroid</p> <p>Glass</p> <p>Prism</p> |
| 2 | Light can be polarized by |
<p>Selective absorption</p> <p>Reflection </p> <p>Scattering</p> <p>All of these</p> |
| 3 | A polaroid is. |
<p>A device used in polarimeter</p> <p>A light filter</p> <p>A device used to analyze polarized light</p> <p>All of these</p> |
| 4 | Polarizatio of light shows taht light is |
<p>Corpuscular in nature</p> <p>Of extremely shrot waves</p> <p>Longitudinal waves</p> <p>Transverse waves</p> |
| 5 | Which of the following rays cannot be polarized. |
<p>Sound Waves</p> <p>Light Waves</p> <p>X- Rays</p> <p>Infrated rays</p> |
| 6 | Longitudinal waves do not exhibit. |
<p>Polarization </p> <p>Reflection </p> <p>Diffraction </p> <p>Refraction</p> |
| 7 | Which of the following is a primary souce of gravitational waves. |
<p>Binary blck hole merger</p> <p>Soalr flares</p> <p>Earth quack</p> <p>Solar wind</p> |
| 8 | Which is the primary method usedot detect gravitational waves. |
<p>Optical telescopes</p> <p>Radio telescopes</p> <p>LASER interferometry</p> <p>Gravitational lensing</p> |
| 9 | What are gravitational waves. |
<p>Electromagnetic waves</p> <p>Mechanical waves</p> <p>Ocean waves</p> <p>Ripple in the fabric of spacetime</p> |
| 10 | Who predicted the existence of gravitational waves. |
<p>Galileo Galilei</p> <p>Albert Einstein</p> <p>Issac Newton</p> <p>Leonardo da 1venci</p> |
| 11 | The unwanted light aht interferes with vision is termed as. |
<p>Haze</p> <p>glare</p> <p>cONTRAST</p> <p>Flare</p> |
| 12 | The condition of maximum intensity of light in a polarization experimentis when. |
<p>The light wave and analyzer are perpendicular</p> <p>The ligh wave and analyzer are parallel</p> <p>The ligh wave and analyzer are at an angle of 45<sup>o</sup></p> <p>The light wave and analyzer are at an angle of 60 <sup>o</sup></p> |
| 13 | The effect of increasing the angle between the light wave and the analyzer on the intensity of light is. |
<p>The intensity increases</p> <p>The intensity of decreases</p> <p>The intensity remains the same</p> <p>The intensity becomes zero</p> |
| 14 | The key purpose of an analyzer in a polarization experiment is. |
<p>To polarize the light</p> <p>To measure the intensity of light</p> <p>To change the direction oflight</p> <p>To filter out onwanted light</p> |
| 15 | The intensity of light when it passes through a polarizer. |
<p>Decreases</p> <p>Increases</p> <p>Remain same</p> <p>Become Zero</p> |
| 16 | Malus's law states that |
<p>The intensity of light is directly proportional to the square of the cosine of the angle between the light wave and the analyzer</p> <p>The intensity of light is directly proportional to the squae of the sine of the angle betwene the light wave and the analyzer</p> <p>The intensity of light is directly proportional to the angle between the light wave and the analyzer</p> <p>The intensity of light is invesely proportional to the angle between the light wave and the analyzer</p> |
| 17 | The phenomenon of polarization of light is |
<p>The process of scattering of light</p> <p>The property of light to vibrate in a specific plane</p> <p>The ability of light to travel in a straight line</p> <p>The phenomenon of light chaning colour</p> |
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