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(d) violet coloured ray undergoes maximum deviation
(b) dispersion of light
(a) atmospheric refraction
(b) hypermetropia
(b) short sightedness
(a) The near point of his eyes has receded away
(a) myopia
(d) infinity to 25 cm
(d) real, inverted and diminished
(b) the iris makes the pupil contract
When white light passes through a glass prism
(d) violet coloured ray undergoes maximum deviation
(d) violet coloured ray undergoes maximum deviation
See lessWhen a beam of white light passes through a glass prism, it splits up into seven colours. This phenomenon is due to
(b) dispersion of light
(b) dispersion of light
See lessStars twinkle due to
(a) atmospheric refraction
(a) atmospheric refraction
See lessA girl can see distant objects clearly but cannot see an object situated close to her eye. She is suffering with
(b) hypermetropia
(b) hypermetropia
See lessA student sitting on last bench in a classroom cannot see clearly words written on the blackboard. He is suffering from
(b) short sightedness
(b) short sightedness
See lessA student sitting on the last bench can read the letters written on the blackboard but is not able to read the letters written in his textbook. Which of the following statements is correct?
(a) The near point of his eyes has receded away
(a) The near point of his eyes has receded away
See lessA person cannot see distinctly objects kept beyond 80cm. This defect of vision is known as
(a) myopia
(a) myopia
See lessThe range of vision of a normal human eye is from
(d) infinity to 25 cm
(d) infinity to 25 cm
See lessEyes lens form the image of an object situated in front of it at the retina. The image formed is
(d) real, inverted and diminished
(d) real, inverted and diminished
See lessWhen the light is very bright
(b) the iris makes the pupil contract
(b) the iris makes the pupil contract
See less