The following figure shows a logic gate circuit with two inputs A and B and the output Y. The voltage waveforms of A, B and Y are as given.
The logic gate is
A
NOR gate
B
OR gate
C
AND gate
D
NAND gate
3
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
The binding energy per nucleon in deuterium and helium nuclei are 1.1 MeV and 7.0 MeV, respectively. When two deuterium nuclei fuse to form a helium nucleus the energy released in the fusion is
A
23.6 MeV
B
2.2 MeV
C
28.0 MeV
D
30.2 MeV
4
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
The speed of light in media M1 and M2 are 1.5 $$ \times $$ 108 m/s and 2.0 $$ \times $$ 108 m/s respectively. A ray of light enters from medium M1 to M2 at an incidence angle i. If the rays suffers total internal reflection, the value of i is
A
Equal to sin$$-$$1 $$\left( {{2 \over 3}} \right)$$
B
Equal to or less than sin$$-$$1$$\left( {{3 \over 5}} \right)$$
C
Equal to or greater than sin$$-$$1 $$\left( {{3 \over 4}} \right)$$
D
Less than sin$$-$$1$$\left( {{2 \over 3}} \right)$$