1
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
2
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
3
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
4
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
The volume of a sealed packet is 1 liter and its mass is 800 g. The packet is first put inside the water with a density of 1 g cm-3 and then in another liquid B with a density of 1.5 g cm-3. Then which one of the following statements holds true?
A
The packet will float in both water and liquid B.
B
The packet will sink in both water and liquid B.
C
The packet will sink in water but will float in liquid B.
D
The packet will float in water and sink in liquid B.
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12