GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 020
191). Which part of the camera is analogous to the retina in the human eye
A). lens
B). film
C). aperture
D). shutter
Answer: film
192). When a person enters a dark room from bright light, he is not able to see clearly for a little while because the
A). eye is unable to adjust itself immediately
B). retina becomes insensitive momentarily
C). iris is unable to dilate the pupil immediately
D). distance between the lens and retina takes time to adjust
Answer: iris is unable to dilate the pupil immediately
193). The accommodation of the eye is produced by
A). change in the size of the pupil
B). contraction of the iris
C). the ciliary muscles
D). the forward movement of the retina
Answer: the ciliary muscles
194). In old age, people have to wear spectacles for reading and writing because
A). their eye lenses become weak
B). they lose the power of accommodation
C). their eyeballs become too short
D). their eye-lenses lose their magnifying power
Answer: they lose the power of accommodation
195). The sky appears blue because
A). it is actually blue
B). the atmosphere scatters blue colours more than the others
C). all colours interfere to produce blue
D). in white light the blue component dominates
Answer: the atmosphere scatters blue colours more than the others
196). To an astronaut, the outer space appears
A). white
B). black
C). deep blue
D). crimson
Answer: black
197). In upper space, astronauts
A). cannot see stars during the day
B). cannot see stars at all
C). can see stars during the day opposite the sun
D). can see stars during the day in all directions
Answer: can see stars during the day in all directions
198). The sun appears deep orange-red before it sets because
A). it is hotter at the end of the day
B). it contains more helium in the evening
C). it emits only orange-red light
D). its light has to traverse a thicker atmosphere therefore, other colours get scattered and do not reach us
Answer: its light has to traverse a thicker atmosphere therefore, other colours get scattered and do not reach us
199). Soap bubbles show multiple colours when viewed in white light because of
A). the scattering of light by thin films
B). the interference of the reflected light
C). the dispersion of light
D). the characteristic colours of soap solution
Answer: the interference of the reflected light
200). The technique of recording and reproducing three-dimensional images of objects is known as
A). audiography
B). lexicography
C). holography
D). photography
Answer: holography
A). lens
B). film
C). aperture
D). shutter
Answer: film
192). When a person enters a dark room from bright light, he is not able to see clearly for a little while because the
A). eye is unable to adjust itself immediately
B). retina becomes insensitive momentarily
C). iris is unable to dilate the pupil immediately
D). distance between the lens and retina takes time to adjust
Answer: iris is unable to dilate the pupil immediately
193). The accommodation of the eye is produced by
A). change in the size of the pupil
B). contraction of the iris
C). the ciliary muscles
D). the forward movement of the retina
Answer: the ciliary muscles
194). In old age, people have to wear spectacles for reading and writing because
A). their eye lenses become weak
B). they lose the power of accommodation
C). their eyeballs become too short
D). their eye-lenses lose their magnifying power
Answer: they lose the power of accommodation
195). The sky appears blue because
A). it is actually blue
B). the atmosphere scatters blue colours more than the others
C). all colours interfere to produce blue
D). in white light the blue component dominates
Answer: the atmosphere scatters blue colours more than the others
196). To an astronaut, the outer space appears
A). white
B). black
C). deep blue
D). crimson
Answer: black
197). In upper space, astronauts
A). cannot see stars during the day
B). cannot see stars at all
C). can see stars during the day opposite the sun
D). can see stars during the day in all directions
Answer: can see stars during the day in all directions
198). The sun appears deep orange-red before it sets because
A). it is hotter at the end of the day
B). it contains more helium in the evening
C). it emits only orange-red light
D). its light has to traverse a thicker atmosphere therefore, other colours get scattered and do not reach us
Answer: its light has to traverse a thicker atmosphere therefore, other colours get scattered and do not reach us
199). Soap bubbles show multiple colours when viewed in white light because of
A). the scattering of light by thin films
B). the interference of the reflected light
C). the dispersion of light
D). the characteristic colours of soap solution
Answer: the interference of the reflected light
200). The technique of recording and reproducing three-dimensional images of objects is known as
A). audiography
B). lexicography
C). holography
D). photography
Answer: holography
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