[New post] UPSSSC PET Exam 2022 | Important questions related to light wave, read
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UPSSSC PET Exam Light Wave Related Important Questions : The Uttar Pradesh Subordinate Services Selection Commission (UPSSSC) has started the process of conducting Preliminary Qualifying Test (PET) for Group 'C' recruitment. Under which this examination was to be conducted in September, but now this examination will be conducted in the month of October on 15th and 17th. Let us tell you that only after qualifying this exam, candidates can appear in Group 'C' exam.
In such a situation, today, through this article, we have brought the most important questions related to light wave with answers, which can play an important role in the abdominal exam conducted by UPSSSC, so the candidates can make their preparation stronger by studying these questions. And can also get good marks in the exam.
UPSSSC PET Exam Light Wave Related Important Questions
UPSSSC PET Exam Light Wave Related Important Questions
Question. When a ray of light travels from a denser medium to a rarer medium, it bends-)
low speed towards normal
low speed away from the normal
rapid motion towards the normal
far away from the normal
Answer: 4
Question. The bending of light rays in a medium is called?
refraction
Reflection
Spreading
deflection
Answer 1
Question. When an object is placed on the curvature of a concave mirror, the image formed will be:
except for C
on focus
in C
between F and C
Answer: 4
Question. Dentists use a concave mirror because of the image formed on it.
real and big
virtual but blurry
real but reverse
virtual and big
Answer: 4
Question. Which mirror is used in the headlight of vehicles?
plane mirror
convex mirror
plane-convex mirror
concave mirror
Answer: 4
Question. An object is placed at the center of curvature of a concave mirror. Where will its reflection be formed?
At some point between the focus and the center of curvature (0)
on focus
beyond the center of curvature
at the center of curvature
Answer: 4
Question. In which of the following concave mirror is not used?
search light
solar furnace
rear mirror
car headlight
Answer: 3
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Question. If the angle of incidence on a concave mirror is 30°, then what will be the value of the angle of reflection?
Answer: 2
Question. Which of the following does not contribute to the luster of diamond?
Total Internal Reflection
High refractive index of diamond
scatter (dispersion)
Low refractive index of diamond
Answer: 4
Question. What is the absolute refractive index of air?
Answer: 4
Question. Which of the following is not related to the flow of heat?
conductive
refractive
radiative
convective
Answer: 2
Question. If the refractive index of water is 4/3, what will be the speed of light in water?
2.25×108 m/s.
4×108 m/s.
1.5×108 m/s.
2.67×10 m/s.
Answer 1
Question. What is the ratio of the speed of light in a vacuum to that of a medium called?
reflective index
refractive index
air quality index
Medivac Index
Answer: 2
Question. What is the absolute refractive index of any medium always?
1
more than one
less than one
0
Answer: 2
Question. Due to twinkling of stars at night it happens.
atmospheric refraction
dispersion of light
reflection of light
scattering of light
Answer : ?
What would be the correct answer to this question? Do tell by commenting below.
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