Q(1).The melodious effect on our ear produces by the combination of two or more notes of the modern pop songs is called
A.concord
B.chords
C.beats
D.overtones
Q(2).Which one of the following is responsible for the energy release by stars?
A.Fission
B.Fusion
C.Chemical reaction
D.Gravitational collapse
Q(3).Which of the following statements given below is correct in the respect of a geostationary satellite?
A.It moves in a plane containing the Greenwich merdian
B.It moves in a plane perpendicular to the celestal equatorial plane
C.Its height above the earth's surface is about the same as the radius of the earth
D.Its height above the earth's surface is about the six times the radius of the earth
Q(4).What will happen if the star having mass greater than five times of the Sun is dead?
A.White dwarf will form
B.Neutron star will form
C.Black hole will form
D.Nebula will form
Q(5).In general what is range of frequency of the "Message Signal"?
A.Radio frequency
B.Audio frequency
C.Both 'a' and 'b'
D.Neither 'a' and 'b'
Q(6).The formation of three dimension image by interference of two light beams from the laser or other coherent source of light is called
A.optical photography
B.holography
C.X-ray photography
D.radiography
Q(7).Which one of the following phenomena shows particle nature of light?
A.Polarisation
B.Photo-electric effect
C.Iterference
D.Refraction
Q(8).Which one of the following is deviated by an electric field?
A.alpha rays
B.gama rays
C.neutrons
D.x-rays
Q(9).Which one among the following lasers is used in cancer treatment?
A.He-Ne laser
B.Ruby laser
C.CO2 laser
D.Semiconductor laser
Q(10).Modern movie songs released are the best in quality of sound. The rich quality of sound is due to which one of the following?
A.A note of high frequency
B.A note of high amplitude
C.Consists many harmonics
D.Consists the fundamental frequency
A.concord
B.chords
C.beats
D.overtones
Q(2).Which one of the following is responsible for the energy release by stars?
A.Fission
B.Fusion
C.Chemical reaction
D.Gravitational collapse
Q(3).Which of the following statements given below is correct in the respect of a geostationary satellite?
A.It moves in a plane containing the Greenwich merdian
B.It moves in a plane perpendicular to the celestal equatorial plane
C.Its height above the earth's surface is about the same as the radius of the earth
D.Its height above the earth's surface is about the six times the radius of the earth
Q(4).What will happen if the star having mass greater than five times of the Sun is dead?
A.White dwarf will form
B.Neutron star will form
C.Black hole will form
D.Nebula will form
Q(5).In general what is range of frequency of the "Message Signal"?
A.Radio frequency
B.Audio frequency
C.Both 'a' and 'b'
D.Neither 'a' and 'b'
Q(6).The formation of three dimension image by interference of two light beams from the laser or other coherent source of light is called
A.optical photography
B.holography
C.X-ray photography
D.radiography
Q(7).Which one of the following phenomena shows particle nature of light?
A.Polarisation
B.Photo-electric effect
C.Iterference
D.Refraction
Q(8).Which one of the following is deviated by an electric field?
A.alpha rays
B.gama rays
C.neutrons
D.x-rays
Q(9).Which one among the following lasers is used in cancer treatment?
A.He-Ne laser
B.Ruby laser
C.CO2 laser
D.Semiconductor laser
Q(10).Modern movie songs released are the best in quality of sound. The rich quality of sound is due to which one of the following?
A.A note of high frequency
B.A note of high amplitude
C.Consists many harmonics
D.Consists the fundamental frequency
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