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Download in pdf physics general knowledge quiz questions and answers or GK objective questions with answers. These multiple choice questions and answers include mcqs on physics etc.
(66)
A body absorbs heat most if it is
[A]
black and smooth
[B]
black and rough
[C]
white and black
[D]
white and rough
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(67)
The slope of a velocity-time graph represents
[A]
distance
[B]
acceleration
[C]
speed
[D]
All of the above
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(68)
A rear-view mirror for driving is
[A]
convex
[B]
concave
[C]
inverted
[D]
None of the above
Comment
(69)
The audio signals of TV are
[A]
unmodulated
[B]
velocity modulated
[C]
Amlitude modulated
[D]
frequency modulated
Comment
(70)
Red is used as an emergency or danger signal as
[A]
it is scattered
[B]
it has very high energy
[C]
its wavelength is the longest
[D]
None of the above
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