Physics Light MCQ

51. Question

Polaroid sunglasses decrease glare on a sunny day because




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52. Question

Doubly refracting calcite crystal is placed over an ink dot. On seeing through the crystal, one observes.




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53. Question

When the light is polarised by reflection, what is the angle between the reflected and refracted rays




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54. Question

The intensity of light incident on a polariser is I and that of the light emerging from it is also I. The light incedent on the polariser is




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55. Question

When the analyser in rotated througt 360°, one observes




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