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Physics ICS Part 1 Chapter 8 Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | The mathematical representation of Malus's law is. |
<p>I =I<sub>o</sub> Cos 2 <span style="font-size:11pt"><span style="line-height:107%"><span style="font-family:Calibri,sans-serif"><m:omathpara><m:omath><i><span style="font-family:"Cambria Math",serif"><m:r>θ</m:r></span></i></m:omath></m:omathpara></span></span></span></p> <p>I = I <sub>o </sub>Sin <span style="font-size:11pt"><span style="line-height:107%"><span style="font-family:Calibri,sans-serif"><m:omathpara><m:omath><i><span style="font-family:"Cambria Math",serif"><m:r>θ</m:r></span></i></m:omath></m:omathpara></span></span></span></p> <p>I = I<sub>o </sub>Tan2 <span style="font-size:11pt"><span style="line-height:107%"><span style="font-family:Calibri,sans-serif"><m:omathpara><m:omath><i><span style="font-family:"Cambria Math",serif"><m:r>θ</m:r></span></i></m:omath></m:omathpara></span></span></span></p> <p>I = I<sub>o</sub> Cot 2 <span style="font-size:11pt"><span style="line-height:107%"><span style="font-family:Calibri,sans-serif"><m:omathpara><m:omath><i><span style="font-family:"Cambria Math",serif"><m:r>θ</m:r></span></i></m:omath></m:omathpara></span></span></span></p> |
| 2 | Bending of light around the edges of an obstacle is called. |
<p>Refraction </p> <p>Polarization </p> <p>Diffraction </p> <p>Interference</p> |
| 3 | Optically acgive crystals are |
<p>Quartz</p> <p>Sodium Chlorate</p> <p>Sodium Chlorade</p> <p>Botha a and b</p> |
| 4 | An unpolarized beam of gtransverse wave is that whose vibrations. |
<p>Are confined to a single plane</p> <p>Takes place in direction perpendicular to their direction of propogation</p> <p>Takes place in all direction </p> <p>Take place i n directio parallel to the direction of propogation</p> |
| 5 | To distinguish between transverse and longitudinal wae............is used. |
<p>Polarization </p> <p>Refraction </p> <p>Interference</p> <p>Diffraction </p> |
| 6 | The process of confining the beam of light to vibrate in one plane is called. |
<p>Interference</p> <p>Diffraction </p> <p>Polarizaion</p> <p>Total internet refelection </p> |
| 7 | Polarized sun glasses decrease glare on sunny day because they. |
<p>Completely absorb the light </p> <p>Have a special colour</p> <p>Refract the light</p> <p>Block a portion of light</p> |
| 8 | We van polarize the light by passing it through. |
<p>Water</p> <p>Polaroid</p> <p>Glass</p> <p>Prism</p> |
| 9 | Light can be polarized by |
<p>Selective absorption</p> <p>Reflection </p> <p>Scattering</p> <p>All of these</p> |
| 10 | 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> |
| 11 | 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> |
| 12 | Which of the following rays cannot be polarized. |
<p>Sound Waves</p> <p>Light Waves</p> <p>X- Rays</p> <p>Infrated rays</p> |
| 13 | Longitudinal waves do not exhibit. |
<p>Polarization </p> <p>Reflection </p> <p>Diffraction </p> <p>Refraction</p> |
| 14 | 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> |
| 15 | 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> |
| 16 | What are gravitational waves. |
<p>Electromagnetic waves</p> <p>Mechanical waves</p> <p>Ocean waves</p> <p>Ripple in the fabric of spacetime</p> |
| 17 | Who predicted the existence of gravitational waves. |
<p>Galileo Galilei</p> <p>Albert Einstein</p> <p>Issac Newton</p> <p>Leonardo da 1venci</p> |
