ExamSIDE
Questions
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1
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
The compound statement $$(P \vee Q) \wedge ( \sim P) \Rightarrow Q$$ is equivalent to :
A
$$P \vee Q$$
B
$$P \wedge \sim Q$$
C
$$ \sim (P \Rightarrow Q)$$
D
$$ \sim (P \Rightarrow Q) \Leftrightarrow P \wedge \sim Q$$
2
JEE Main 2021 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Consider the statement "The match will be played only if the weather is good and ground is not wet". Select the correct negation from the following :
A
The match will not be played and weather is not good and ground is wet.
B
If the match will not be played, then either weather is not good or ground is wet.
C
The match will be played and weather is not good or ground is wet.
D
The match will not be played or weather is good and ground is not wet.
3
JEE Main 2021 (Online) 25th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
The Boolean expression $$(p \Rightarrow q) \wedge (q \Rightarrow \sim p)$$ is equivalent to :
A
$$ \sim $$ q
B
q
C
p
D
$$ \sim $$ p
4
JEE Main 2021 (Online) 22th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Which of the following Boolean expressions is not a tautology?
A
(p $$\Rightarrow$$ q) $$ \vee $$ ($$ \sim $$ q $$\Rightarrow$$ p)
B
(q $$\Rightarrow$$ p) $$ \vee $$ ($$ \sim $$ q $$\Rightarrow$$ p)
C
(p $$\Rightarrow$$ $$ \sim $$ q) $$ \vee $$ ($$ \sim $$ q $$\Rightarrow$$ p)
D
($$ \sim $$ p $$\Rightarrow$$ q) $$ \vee $$ ($$\sim$$ q $$\Rightarrow$$ p)
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