1
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
A wave $$y=a$$ $$\sin \left( {\omega t - kx} \right)$$ on a string meets with another wave producing a node at $$x=0.$$ Then the equation of the unknown wave is
A
$$y = a\,\sin \,\left( {\omega t + kx} \right)$$
B
$$y = - a\,\sin \,\left( {\omega t + kx} \right)$$
C
$$y = a\,\sin \,\left( {\omega t - kx} \right)$$
D
$$y = - a\,\sin \,\left( {\omega t - kx} \right)$$
2
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
When temperature increases, the frequency of a tuning fork
A
increases
B
decreases
C
remains same
D
increases or decreases depending on the material
3
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
On moving a charge of $$20$$ coulomb by $$2$$ $$cm,$$ $$2$$ $$J$$ of work is done, then the potential differences between the points is
A
$$0.1$$ $$V$$
B
$$8$$ $$V$$
C
$$2V$$
D
$$0.5$$ $$V.$$
4
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
If there are $$n$$ capacitors in parallel connected to $$V$$ volt source, then the energy stored is equal to
A
$$CV$$
B
$${1 \over 2}nC{V^2}$$
C
$$C{V^2}$$
D
$${1 \over {2n}}C{V^2}$$
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