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A simple harmonic oscillation is represented by the equation $\gamma =0.40 \sin \bigg[\large\frac{40\;t}{7}$$+0.61\bigg]$ where $\gamma$ and $\mathit{t}\;$ are in meters and seconds respectively. The value of time period is ........... sec.
jeemain
eamcet
physics
1991
fitb
q20
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Sep 11, 2013
by
meena.p
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Sep 12, 2013
by
meena.p
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A body of mass $\mathit{m}\;$ thrown horizontally with velocity $\mathit{v}\;$, from the top of tower of height $\mathit{h}\;$, touches the level of ground at a distance of 250 m from the foot of the tower. A body of mass $2\mathit{m}\;$, thrown horizontally with velocity $\mathit{v/}\;2$, from the top of a tower of height $4\mathit{\;h}\;$ will touch the level ground at a distance .................. meters from the foot of the tower.
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Nov 2, 2013
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If $\overrightarrow {A}, \overrightarrow {B}$ are perpendicular vectors $ \overrightarrow {A}=5 \hat {i}+7 \hat {j}-3 \hat {k}.\quad \overrightarrow {B}=2 \hat {i}+2 \hat {j}-c \hat {k}$. The value of $\mathit{c}\;$ is:
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Sep 10, 2013
by
meena.p
jeemain
eamcet
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A point performs simple harmonic oscillation of period T and the equation of motion is given by $ x = a\: \sin \: ( wt+ \pi/6)$. After the elapse of what fraction of the time period the velocity of the point will be equal to half of its maximum velocity ?
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Dec 15, 2013
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A particle of mass $4 \;m $ which is at rest explodes into three fragments. Two of the frangements each of mass $\mathit{m}\;$ are found to move with a speed of $\mathit{v}\;$ each in mutually perpendicular direction. The total energy released in the process is ................ .
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Sep 11, 2013
by
meena.p
jeemain
eamcet
physics
1991
fitb
q22
0
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To minimize spherical aberration two lenses of focal length $\mathit{f_1}\;$ and $\mathit{f_2}\;$ are placed with a distance of separation equal to .................. .
asked
Sep 11, 2013
by
meena.p
jeemain
eamcet
physics
1991
fitb
q19
0
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The method of connecting the negative pole of battery to $\mathit{p}\;$- material and positive pole to $\mathit{n}\;$-material of a $\mathit{p-n}\;$ junction is called .................... connection.
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Sep 11, 2013
by
meena.p
jeemain
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