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Physics NEET MCQ
Motion In One Dimension Mcq
Quiz 9
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Q.1
A stone falls under gravity. It covers distances h1, h2, h3 in the first 5 seconds, next 5 seconds and the next 5 seconds respectively. The relation between h1, h2 ,h3 is.. [NEET 2013]
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a) h1 =2h2 =3h3
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b) h1 = h2/3 = h3/5
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c) h2 =3h1 and h3 = 3h2
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d) h1 =h2 =h3
Explanation
Using formula h = ut + (1/2) gt2 Displacement in 0 to 5 sec Displacement in 0 to 10 sec Displacement in 5 to 10 sec Displacement in 0 to 15 sec Displacement in 10 to 15 sec Answer:(b)
Q.2
A particle of unit mass undergoes one-dimensional motion such that its velocity varies according to v(x) = βx-2n, where β and n are constants and x is the position of the particle. The acceleration of the particle as a function of x, is given by : … [ AIPMT 2015]
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a) -2nβ2 x-4n+1
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b) -2nβ2 x-2n-1
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c) -2nβ2 x-4n-1
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d) -2β2 x-2n+1
Explanation
Answer:(c)
Q.3
Two cars P and Q start from a point at the same time in a straight line and their positions are represented by xp(t) = at + bt2 and xQ (t) = ft – tAt what time do the cars have the same velocity ? [ NEET II – 2016]
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a)
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b)
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c)
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d)
Explanation
a+2bt = f-2t Answer:(b)
0 h : 0 m : 1 s
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