1
GATE IN 2005
MCQ (Single Correct Answer)
+1
-0.3
If a vector $$\overrightarrow R \left( t \right)$$ has a constant magnitude then
A
$$\overrightarrow R .{{d\overrightarrow R } \over {dt}} = 0$$
B
$$\overrightarrow R \times {{d\overrightarrow R } \over {dt}} = 0$$
C
$$\overrightarrow R .\overrightarrow R {{d\overrightarrow R } \over {dt}}$$
D
$$\overrightarrow R \times \overrightarrow R {{d\overrightarrow R } \over {dt}}$$
2
GATE IN 2005
MCQ (Single Correct Answer)
+1
-0.3
The probability that there are $$53$$ Sundays in a randomly chosen leap year is
A
$${1 \over 7}$$
B
$${1 \over 14}$$
C
$${1 \over 28}$$
D
$${2 \over 7}$$
3
GATE IN 2005
MCQ (Single Correct Answer)
+1
-0.3
The general solution of the differential equation $$\left( {{D^2} - 4D + 4} \right)y = 0$$ is of the form (given $$D = {d \over {dx}}$$ and $${C_1},{C_2}$$ are constants)
A
$${C_1}\,{e^{2x}}$$
B
$${C_1}\,{e^{2x}} + {C_2}\,{e^{ - 2x}}$$
C
$${C_1}\,{e^{2x}} + {C_2}\,{e^{2x}}$$
D
$${C_1}\,{e^{2x}} + {C_2}\,x\,{e^{2x}}$$
4
GATE IN 2005
MCQ (Single Correct Answer)
+1
-0.3
Let $${z^3}\, = \,\overline z $$, where z is a complex number not equal to zero. Then z is a solution of
A
$${z^2} = 1$$
B
$${z^3} = 1$$
C
$${z^4} = 1$$
D
$${z^9} = 1$$