1
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following statements about speed and velocity is correct?
A
Speed and velocity both are vector quantities.
B
Speed and velocity both are scalar quantities.
C
Speed is vector quantity and velocity is scalar quantity.
D
Speed is scalar quantity and velocity is vector quantity. 
2
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Two convex lenses have focal lengths of 50 cm and 25 cm, respectively. If these two lenses are placed in contact, then the net power of this combination will be equal to
A
+2 dioptre
B
+6 dioptre
C
-6 dioptre 
D
+3 dioptre
3
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following terms cannot represent electrical power in a circuit?
A
VI
B
I2 / R
C
I2R
D
V2 / R
4
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
The refractive index of crown glass is close to 3/2. If the speed of light in air is c, then the speed of light in the crown glass will be close to
A
(3 / 2)c
B
(4 / 9)c
C
(2 / 3)c
D
(9 / 4)c
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