MCQ Practice – Class 6 to 10

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Quiz – The Human Eye and the Colourful World

Time: 00:00

Q1. What is the near point of an old person with presbyopia?

A. 10 cm B. 25 cm C. Less than 25 cm D. More than 25 cm

Q2. Which cells help in dim-light vision?

A. Cones B. None C. Rods D. Both rods and cones

Q3. The band of seven colours is called:

A. Halo B. Dispersion C. Spectrum D. Rainbow

Q4. Which colour scatters the least?

A. Green B. Blue C. Violet D. Red

Q5. Presbyopia is corrected using:

A. Concave lens B. Prism C. Bifocal lens D. Convex lens

Q6. The image in the human eye is formed on the:

A. Retina B. Iris C. Optic nerve D. Pupil

Q7. The ability of the eye lens to adjust its focal length is called:

A. Dispersion B. Refraction C. Power D. Accommodation

Q8. The coloured part of the eye is:

A. Retina B. Iris C. Lens D. Cornea

Q9. The blue colour of the sky is due to:

A. Scattering B. Refraction C. Absorption D. Reflection

Q10. The phenomenon causing the apparent flattening of the Sun at sunset is:

A. Reflection B. Interference C. Dispersion D. Atmospheric refraction