1
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
 A ball is thrown vertically upward with a speed of 40 m/s. The time taken by the ball to reach the maximum height would be approximately
A
2 s
B
3 s
C
4 s
D
5 s
2
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
The time period of a 1 m long pendulum approximates to
A
6 s
B
4 s
C
2 s
D
1 s
3
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following reactions is an example of decomposition reaction?
A
CH4 (g) + 2O2 (g) → CO2(g) + 2H2O(g)
B
2AgCI(s) $\rm \xrightarrow{Sunlight} $ 2Ag(s) + CI2(g)
C
CuO + H$\rm \xrightarrow{Heat} $ Cu + H2O
D
Fe(s) + CuSO4 (aq) → FeSO4 (aq) + Cu(s)
4
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language

Which one of the following is the mechanism of action of oral contraceptive pills?

A
They kill the egg.
B
They kill the sperm.
C
They kill the zygote.
D
They inhibit the release of egg.
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