Consider the following phenomena 1. Size of the sun at dusk 2. Colure of the sun at dawn 3. Moon being visible at dawn 4. Twinkle of stars in the sky 5. Polestar being visible in the sky Which of the above are optical illusions?

Question

CollectorBabu · Accepted Answer

Correct Answer: 1, 2 and 4. Optical illusion is characterized by visually apparent images which differ from objective reality. 1 “Size of the sun at dusk” is correct Sun appears big in size at sunset while sunrise is a mental illusion. 2 ” Colure of the sun at dawn” Is correct as sun appears red as atmosphere scatters blue light more efficiently which is optical illusion. 3 “Moon being visible at dawn” is incorrect as sun or moon at horizon where vertical diameter is less than horizontal diameter. 4 “Twinkle of stars in the sky “ is correct as twinkling of stars is nothing but optical illusion as light travels in straight line and when passes through hot and cold air layers bends and deflects. From above description, 1, 2 and 4 are only cases of optical illusions, so option C is correct.

Consider the following phenomena 1. Size of the sun at dusk 2. Colure of the sun at dawn 3. Moon being visible at dawn 4. Twinkle of stars in the sky 5. Polestar being visible in the sky Which of the above are optical illusions?

Contact Information

Services