NDA 2017 Paper 2 | Physics Question 85 | General Science

NDA 2017 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

An object moves in a circular path with a constant speed. Which one of the following statements is correct?

The centripetal acceleration of the object is smaller for a gentle curve (i.e. curve of larger radius) than that for a sharp curve (i.e. curve of smaller radius).

The centripetal acceleration is greater for a gentle curve than that for a sharp curve.

The centripetal acceleration is the same for both the gentle and sharp curves.

The centripetal acceleration causes the object to slow down.

NDA 2017 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

The force acting on a particle of mass m moving along the X-axis is given by F(x) = Ax² $$-$$ Bx. Which one of the following is the potential energy of the particle?

2Ax $$-$$ B

$$ - {{{x^2}} \over 6}(2Ax - 3B)$$

Ax³ $$-$$ Bx²

Zero

NDA 2017 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

The symbol of SI unit of inductance is H. It stands for

Holm

Halogen

Henry

Hertz

NDA 2017 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

In a vacuum, a five-rupee coin, a feather of sparrow bird and a mango are dropped simultaneously from the same height. The time taken by them to reach the bottom is t₁, t₂ and t₃, respectively. In this situation, we will observe that

t₁ > t₂ > t₃

t₁ > t₃ > t₂

t₃ > t₁ > t₂

t₁ = t₂ = t₃

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