★ Human Eye and Colourful World Quiz
Appearant position of the object when looking through hot air, fluctuates because
A. Dispersion
B. reflection
C. refraction
D. None of the above
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A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power
A. 0.5 D
B. -0.5 D
C. 0.2 D
D. -0.2 D
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