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
If in a p-n junction, a square input signal of 10 V is applied, as shown,
then the output across RL will be
A
B
C
D
3
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
A mass m moves in a circle on a smooth horizontal plane with velocity v0 at a radius R0. The mass is attached to a string which passes through a smooth hole in the plane as shown. the tension in the string is increased gradually and finally m moves in a circle of radius $${{{R_0}} \over 2}$$.
The final value of the kinetic energy is
A
2mv$$_0^2$$
B
$${1 \over 2}$$mv$$_0^2$$
C
mv$$_0^2$$
D
$${1 \over 4}$$mv$$_0^2$$
4
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