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1
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
A thin disc and a thin ring, both have mass M and radius R. Both rotate about axes through their centre of mass and are perpendicular to their surfaces at the same angular velocity. Which one of the following statements is correct?
A
The ring has higher kinetic energy.
B
The disc has higher kinetic energy.
C
The ring and the disc both have the same kinetic energy.
D
Kinetic energies of both the bodies are zero, since they are not in linear motion.
2
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
In which of the following phenomena do heat waves travel along a straight line with the speed of light?
A
Thermal conduction
B
Thermal convention
C
Thermal radiation
D
Both (a) and (c)
3
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following statements regarding Ohm's law is not correct?
A
Ohm's law is an assumption that current through a conductor is always directly proportional to the potential difference applied to it.
B
A conducting device obeys Ohm's law when the resistance of a device is independent of magnitude and polarity of applied potential difference.
C
A conducting material obeys Ohm's law when the resistance of material is independent of the magnitude and direction of applied electric field.
D
All homogeneous materials obey Ohm's law irrespective of whether the field is within range or strong.
4
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
When a ball bounces off the ground, which of the following changes suddenly?

(Assume no loss of energy to the floor)
A
Its speed
B
Its momentum
C
Its kinetic energy
D
Its potential energy
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Questions Asked from Marks 2.5
NDA Subjects
Mathematics
Algebra
Sets, Relations and FunctionsLogarithmsQuadratic Equations and InequalitiesSequence And SeriesBinomial TheoremMatricesDeterminantsPermutations and CombinationsProbabilityComplex NumbersVector AlgebraThree Dimensional GeometryStatistics
Trigonometry
Trigonometric Angles and EquationsInverse Trigonometric FunctionHeight and DistanceProperties of Triangles
Coordinate Geometry
Coordinate System and Straight LineCircleParabolaEllipseHyperbolaConic Section
Calculus
FunctionsLimit, Continuity and DifferentiabilityDifferentiationApplication of DerivativesIndefinite IntegrationDefinite IntegrationArea Under The CurvesDifferential Equations
English
General Science
General Studies