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Light QUESTIONS

Exam NameLight QUESTIONS
DescriptionLight QUESTIONS and Answers exams contains the questions from various competitive exams.These questions are the part of previous year paper.These kind of questions would be helpful in preparing for exams like IAS, PCS, UPSC, NDA, CDS SSC, RRB, PSC, IBPS
Exam TypeMASTER EXAM
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creatorAnirudh(39284)

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Question: To which one of the following process is the term CMYK related ?

Answer:offset printing


Question: Which of the following types of light are strongly absorbed by plants ?

Answer:blue and red


Question: Which one among the following has the highest energy ?

Answer:blue light


Question: Which one of the following types of waves are used in a night vision apparatus ?

Answer:Infra-red-waves


Question: Which one of the following reflects back more sunlight as compared to other three ?

Answer:land covered with fresh snow


Question: Cylindrical lens is used by a person suffering from;

Answer:astigmatism


Question: Why is red light employed for danger signals ?

Answer:red light is cattered least


Question: Whose experiments proved that the speed of light was always the same ?

Answer:Michelson and Marley


Question: Phenomenon of formation of three dimensional image by entrance of two light beams from laser or other coherent sources of light is called

Answer:holography


Question: A person standing in front of a mirror finds his image thinner but with normal height. The mirror in question is :

Answer:convex and cylindrical with axis vertical


Question: Which one of the following phenomena can not be attributed to the refraction of light ?

Answer:redshift


Question: To an observer on the lunar surface, during the day time the sky will appear to be;

Answer:black


Question: If the angle between two plane mirrors is 60: then the number of image formed will be-

Answer:5


Question: The chemical part of the dye that absorbs light and produces colour is called:

Answer:a pigment


Question: Panchromatic photographic film is sensitive to :

Answer:the entire region of the visible spectrum


Question: In summerthe mirages are seen due to the phenomenon of :

Answer:total internal reflection


Question: Camberts, law is related to

Answer:illumination


Question: Electron microscope was invented by

Answer:Knoll and ruska


Question: In which part of the eye lies the pigment, that decides the colour of the eyes of a person ?

Answer:Choroid


Question: What is viewed through an electron microscope ?

Answer:Structure of bacteria and viruses