GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 084
831). By what process is heat transmitted from the filament of an evacuated electric bulb to the glass?
A). conduction
B). convection
C). radiation
D). heat cannot be transmitted through vacuum
Answer: radiation
832). Specific heat capacity of water at 293 K is
A). 4190JKg^-1K^-1
B). 2090JKg^-1K^-1
C). 480JKg^-1K^-1
D). 1964JKg^-1K^-1
Answer: 4190JKg^-1K^-1
833). To correct long sight defect, the lens used is the
A). convex lens
B). concave lens
C). plano convex lens
D). plano concave lens
Answer: convex lens
834). The velocity of light in water is 3/4 to that in air. What is the refractive index of water?
A). 4/3
B). 3/4
C). 1/4
D). 0
Answer: 4/3
835). A compound microscope is constructed using an objective of magnification Mo and an eyepiece of magnification Me. The magnification of the microscope is
A). MoMe
B). MeMo
C). Mo+Me
D). Mo.Me
Answer: Mo.Me
836). Sonometer can be used to determine
A). nodes
B). antinodes
C). pitch
D). the frequency of a tuning fork
Answer: the frequency of a tuning fork
837). In a tape recorder during the reproduction of sound at the playback head
A). varying electric current produces a varying magnetic field
B). varying electric current produces sound
C). varying magnetic field produces a varying electric current
D). varying magnetic field produces sound
Answer: varying magnetic field produces a varying electric current
838). The direction of motion of a current carrying conductor in a magnetic field is given by
A). Amperefs swimming rule
B). Fleming's left hand rule
C). Fleming's right hand rule
D). Oersted's rule
Answer: Fleming's right hand rule
839). Alpha rays are a
A). positively charged particles
B). negatively charged particles
C). chargeless particles
D). electromagnetic radiators
Answer: positively charged particles
840). Electron Was discovered by
A). Thomas Alva Edison
B). Michael Faraday
C). Fleming
D). J. J. Thomson
Answer: J. J. Thomson
A). conduction
B). convection
C). radiation
D). heat cannot be transmitted through vacuum
Answer: radiation
832). Specific heat capacity of water at 293 K is
A). 4190JKg^-1K^-1
B). 2090JKg^-1K^-1
C). 480JKg^-1K^-1
D). 1964JKg^-1K^-1
Answer: 4190JKg^-1K^-1
833). To correct long sight defect, the lens used is the
A). convex lens
B). concave lens
C). plano convex lens
D). plano concave lens
Answer: convex lens
834). The velocity of light in water is 3/4 to that in air. What is the refractive index of water?
A). 4/3
B). 3/4
C). 1/4
D). 0
Answer: 4/3
835). A compound microscope is constructed using an objective of magnification Mo and an eyepiece of magnification Me. The magnification of the microscope is
A). MoMe
B). MeMo
C). Mo+Me
D). Mo.Me
Answer: Mo.Me
836). Sonometer can be used to determine
A). nodes
B). antinodes
C). pitch
D). the frequency of a tuning fork
Answer: the frequency of a tuning fork
837). In a tape recorder during the reproduction of sound at the playback head
A). varying electric current produces a varying magnetic field
B). varying electric current produces sound
C). varying magnetic field produces a varying electric current
D). varying magnetic field produces sound
Answer: varying magnetic field produces a varying electric current
838). The direction of motion of a current carrying conductor in a magnetic field is given by
A). Amperefs swimming rule
B). Fleming's left hand rule
C). Fleming's right hand rule
D). Oersted's rule
Answer: Fleming's right hand rule
839). Alpha rays are a
A). positively charged particles
B). negatively charged particles
C). chargeless particles
D). electromagnetic radiators
Answer: positively charged particles
840). Electron Was discovered by
A). Thomas Alva Edison
B). Michael Faraday
C). Fleming
D). J. J. Thomson
Answer: J. J. Thomson
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