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1
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
Which of the following are the primary colours of light?
A
Yellow, Red and Green
B
Blue, Red and Green
C
Violet, Red and Yellow
D
Indigo, Violet and Green
2
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
According to the New Cartesian Sign Convention, which one of the following is correct is respect of the formula $\dfrac{1}{f} = \dfrac{1}{v}+ \dfrac{1}{u}$, where symbols have their usual meanings?
A
It applies only to spherical mirrors
B
It applies only to spherical lenses
C
It applies to spherical mirrors as well as spherical lenses
D
It is an invalid formula
3
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
Which one of the following statements is not correct for light rays?
A
Light travels at different speeds in different media
B
Light travels at almost 300 million metres per second in air
C
Light speeds down as it leaves a water surface and enters the air
D
Light speeds up as it leaves a glass surface and enters the air
4
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
A glass prism splits white light into different colours. This phenomenon is called dispersion of light by prism. Which one of the following statements is correct?
A
Red light will deviate the most and it is because of the reflection of light
B
Violet light will deviate the most and it is because of the refraction of light
C
Red light will deviate the most and it is because of the refraction of light
D
Violet light will deviate the most and it is because of the reflection of light
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Sets, Relations and FunctionsLogarithmsQuadratic Equations and InequalitiesSequence And SeriesBinomial TheoremMatricesDeterminantsPermutations and CombinationsProbabilityComplex NumbersVector AlgebraThree Dimensional GeometryStatistics
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Trigonometric Angles and EquationsInverse Trigonometric FunctionHeight and DistanceProperties of Triangles
Coordinate Geometry
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