1
NDA General Ability 13 April 2025
MCQ (Single Correct Answer)
+4
-1.33
Change Language
The frequency (f), wavelength (λ) and speed (v) of a sound wave are related as
1
f=vλ
2
λ=vf
3
$f = \frac{\lambda}{v}$
4
v=λf
2
NDA General Ability 13 April 2025
MCQ (Single Correct Answer)
+4
-1.33
Change Language
The length of a simple pendulum is increased four times to its previous value while the mass is doubled. What is the ratio of the new and previous time period of the pendulum?
1
3:1
2
2:5
3
2:1
4
3:2
3
NDA General Ability 13 April 2025
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following is NOT a basic property of electric charge?
1
Charges can be added
2
Charge is conserved
3
Charge on a body is always an integral multiple of an electron or a proton charge
4
Charges can be created and destroyed in an isolated system
4
NDA General Ability 13 April 2025
MCQ (Single Correct Answer)
+4
-1.33
Change Language
What happens when the sunlight travels through the Earth’s atmosphere?
1
The blue colour is scattered more compared to the red colour
2
The red colour is scattered more compared to the blue colour
3
Both the blue and the red colours are scattered equally
4
The blue colour is not scattered but the red colour is scattered the most
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