
Basic Science : Electromagnetic Waves QUESTIONS AND ANSWERS :: part1 : 21 to 25
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
21.Double diffraction is exhibited by |
glass |
gas |
calcite |
liquid |
22.The phenomenon, which proves that light waves are transverse wave is |
diffraction |
refraction |
polarization |
total internal reflection |
23.For one incident ray there will be generally two refracted rays in double refraction in calcite crystals. Which of the following statement is correct? |
Out of two refracted rays one is polarized and the other is not |
Both are polarize in the same plane of polarization |
Both are polarized, but their planes of polarization are at right angles to each other |
Neither is polarized |
24.The polarizing angle for glass is about |
36.0° |
42.0° |
57.5° |
90.0° |
25.If the polarizing angle for glass plate is 60°, then the refractive index of the glass plate is 0.5 |
0.5 |
√3/2 |
√3 |
1/√2 |
More Electromagnetic Waves QUESTIONS AND ANSWERS available in next pages
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