NDA PHYSICS SET | Warriors Defence Academy | Best NDA Coaching in Lucknow

Best NDA Coaching in Lucknow | Best Defence Coaching in Lucknow

NDA PHYSICS SET | Warriors Defence Academy | Best NDA Coaching in Lucknow

1.            When a ship floats on water:      [NDA- II 2010]

a)            It displaces no water

b)            The mass of water displaced is equal to the mass of the ship

c)            The mass of water displaced is lesser than the mass of the ship

d)            The mass of water displaced is greater than the mass of the ship.

2.            Sound moves with higher velocity if:       [NDA- II 2010]

a)            Pressure of the medium is decreased

b)            Temperature of the medium is increased

c)            Humidity of the medium is increased

d)            Both (b) and (c) above

3.            β€˜Fitch’ is a characteristic of sound that depends upon its                [NDA- I 2010]

a)intensity                          b) frequency

c) quality                              d) None of the above

4) The effective resistance of three equal resistances, each of resistance r, connected in parallel, is

a)3/r      b) r/3     c) 3r       d) π’“πŸ‘

5.            The magnetic lines of force due to a bar magnet               [NDA- I 2010]

a)            Intersect inside the body of the magnet

b)            Intersect at neutral points only

c)            Intersect only at north and south pokes

d)            cannot intersect at all

6.            The specific resistance of a conducting wire depends upon          [NDA- I 2010]

a)            Length of the wire, area of cross-section of the wire and material of the wire

b)            length of the wire and area of cross-section of the wire but not on the material of the wire

c)            Material of the wire only but neither on the length of the wire nor on the area of cross-section of the wire

d)            length of the wire only but neither on the area of cross-section of the wire nor on the material of the wire

7.            When X-rays are produced          [NDA- I 2010]

a)            Heat is generated at the target

b)            Heat is absorbed at the target

c)            The temperature of the target remains constant

d)            brilliant light is seen at the target

8.            The radius of curvature of a plane mirror              [NDA- I 2010]

a)            is zero

b)            is infinity

c)            can be anywhere between zero and infinity

d)            None of the above

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