Physics General Knowledge Questions: Physics GK Question for Competitive Exams
Q. Minimum number of unequal vectors which can give zero resultant are
A.two
B.three
C.four
D.more than four
Ans .D
Q. Intensity of sound has
A.an object existence
B.a subject existence
C.no existence
D.both subjective and objective existence
Ans .A
Q. Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from
A.east
B.west
C.northeast
D.southeast
Ans .A
Q. Solar eclipse will take place when
A.the sun is between the moon and the earth
B.the earth is between the moon and the sun
C.the moon is between the sun and the earth
D.the moon does not lie on the line joining the sun and the earth
Ans .D
Q. Isotopes of an element contain
A.the same number of protons but different number of neutrons
B.the same number of neutrons but different number of protons
C.equal number of protons and electrons
D.equal number of nucleons
Ans .D
Q. One watt-hour is equivalent to
A.6.3 x 103 J
B.6.3 x 10-7 J
C.3.6 x 103 J
D.3.6 x 10-3 J
Ans .B
Q. Sir C.V. Raman was awarded Nobel Prize for his work connected with which of the following phenomenon of radiation?
A.Scattering
B.Diffraction
C.Interference
D.Polarization
Ans .A
Q. In which of the following industries is mica as a raw material?
A.Cement
B.Glass and Pottery
C.Iron and Steel
D.Electrical
Ans .A
Q. Radiocarbon dating technique is used to estimate the age of
A.rocks
B.monuments
C.soil
D.fossils
Ans .C
Q. Identify the vector quantity from the following
A.Heat
B.Angular momentum
C.Time
D.Work
Ans .D
Q. Large astronomical telescopes always use as objective
A.lens
B.mirror
C.combinations of lenses
D.None of the above
Ans .C
Q. One should not connect a number of electrical appliances to the same power socket because
A.this can damage the appliances due to overloading
B.this can damage the domestic wiring due to overloading
C.this can damage the electrical meter
D.the appliance will not get full voltage
Ans .B
Q. Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this? Diffusion Refraction Internal reflection
A.I, II and III
B.I and II
C.II and III
D.I and III
Ans .C
Q. Natural radioactivity was discovered by
A.Marie Curie
B.Ernest Rutherfor
C.Henry Baquerel
D.Enrico Fermi
Ans .C
Q. Planets are
A.luminous heavenly bodies revolving around a star
B.non-luminous heavenly bodies
C.luminous heavenly bodies that twinkle
D.luminous heavenly bodies that do not twinkle
Ans .D
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Rajesh Bhatia
A Writer, Teacher and GK Expert. I am an M.A. & M.Ed. in English Literature and Political Science. I am highly keen and passionate about reading Indian History. Also, I like to mentor students about how to prepare for a competitive examination. Share your concerns with me by comment box. Also, you can ask anything at linkedin.com/in/rajesh-bhatia-7395a015b/.
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