Which logic gate is represented by the following combination of logic gates ?
A
AND
B
NOR
C
OR
D
NAND
2
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Kepler's third law states that square of period of revoluation (T) of a planet around the sun, is proportional to third power of average distance r between sun and planet i.e. T2 = Kr3 here K is constant. If the masses of sun and planet are M and m respectively then as per Newton's law of gravitation force of attraction between them is F = $${{GMm} \over {{r^2}}}$$, here G is gravitational constant. The relation between G and K is described as
A
K = G
B
K = $${1 \over G}$$
C
GK = 4$$\pi $$2
D
GMK = 4$$\pi $$2
3
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
A particle of unit mass undergoes one-dimensional motion such that its velocity varies according to $$v\left( x \right) = \beta {x^{ - 2n}}$$, where $$\beta $$ 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
A
$$ - 2{\beta ^2}{x^{ - 2n + 1}}$$
B
$$ - 2n{\beta ^2}{e^{ - 4n + 1}}$$
C
$$ - 2n{\beta ^2}{x^{ - 2n - 1}}$$
D
$$ - 2n{\beta ^2}{x^{ - 4n - 1}}$$
4
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Three blocks A, B and C, of masses 4 kg, 2 kg and 1 kg respectively, are in contact on a frictionless surface, as shown. If a force of 14 N is applied on the 4 kg block, then the contact force between A and B is