300 Physics questions MCQ for SSC

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300 Physics questions and Answers MCQ for SSC / UPSC / PSC / UGC NET/ SET/ for All Competitive Exams Practice Online free

 

1 .Which type of reaction produces the most harmfulradiation ?
A.  Fusion reaction
B.  Fission reaction
C.  Chemical reaction
D.  Photo Chemical reaction
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2 .Pycnometer is an instrument used to measure the
A.  density
B.  intensity of solar radiation
C.  intensity of earthquake
D.  high temperatures
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3 .A concave lens always forms an image which is
A.  real and erect
B.  virtual and erect
C.  real and inverted
D.  virtual and inverted
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4 .When a vibrating tuning fork is placed on a table a loudsound is heard. This is due to :
A.  reflection
B.  refraction
C.  forced vibrations
D.  damped vibrations
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5 .The energy stored in a watch spring is
A.  kinetic energy
B.  potential energy
C.  heat energy
D.  chemical energy
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6 .What is colour of light related to?
A.  Amplitude
B.  Frequency
C.  Quality
D.  Velocity
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7 .The fuse in pure domestic electric circuit melts whenthere is a high rise in
A.  Inductance
B.  Current
C.  Resistance
D.  Capacitance
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8 .The slope of a velocity time graph represents
A.  acceleration
B.  displacement
C.  distance
D.  speed
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9 .Rain drops fall from great height. Which among thefollowing statements is true regarding it?
A.  they fall with that ultimate velocity which aredifferent for different droplets
B.  they fall with same ultimate velocity
C.  their velocity increases and they fall With differentvelocity on the earth
D.  their velocity increases and they fall with samevelocity of the earth
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10 .A metal plate with a circular hole at the centre is heated.What will happen to the area of the hole ?
A.  Increase
B.  Decrease
C.  Remain constant
D.  Will increase first and then decrease
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11 .The frequency of ultrasound wave is typically
A.  Above 20 kHz
B.  Above 20000 kHz
C.  Below 20 kHz
D.  Below 02 kHz
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12 .When heated from 0° to 10°C volume of a given mass ofwater Will
A.  Increase gradually
B.  Decrease gradually
C.  Increase and then will decrease
D.  Decrease and then will increase
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13 .Why is it difficult to breathe at higher altitudes?
A.  Due to low air pressure
B.  Due to low temperature
C.  Due to ozone
D.  Due to high humidity
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14 .Sound cannot pass through
A.  water
B.  steel
C.  air
D.  vacuum
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15 .Knot is a measure of
A.  The speed of ship
B.  The curvature of spherical objects
C.  Solar radiation
D.  Intensity of earthquake shock
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