Physics · NDA previous year questions

679 questions asked across 18 exam years, newest first

Year-wise papers Topic-wise questions

Practise this topic

2010 42 questions

Q702010 · 18 Apr 2010
The magnetic lines of force due to a bar magnet
1. A.intersect inside the body of the magnet
2. B.intersect at neutral points only
3. C.intersect only at north and south poles
4. D.cannot intersect at all
Show answer
Answer: D
Q712010 · 18 Apr 2010
The specific resistance of a conducting wire depends upon
1. A.length of the wire, area of cross-section of the wire and material of the wire
2. B.length of the wire and area of cross-section of the wire but not on the material of the wire
3. C.material of the wire only but neither on the length of the wire nor on the area of cross-section of the wire
4. D.length of the wire only but neither on the area of cross-section of the wire nor on the material of the wire
Show answer
Answer: C
Q732010 · 18 Apr 2010
Which one of the statements given below is not correct?
1. A.A vertical plane passing through the axis of a freely suspended magnet is called the magnetic meridian
2. B.A vertical plane passing through the axis of rotation of the Earth is called the geographical meridian
3. C.The degree to which the magnetic field can penetrate a medium is known as the relative permeability of the medium
4. D.The relative permeability is not a dimensionless quantity
Show answer
Answer: D
Q742010 · 18 Apr 2010
If an object is placed at the centre of curvature of a concave mirror, the position of the image is
1. A.at the principal focus
2. B.between the principal focus and the centre of curvature
3. C.at the centre of curvature
4. D.beyond the centre of curvature
Show answer
Answer: C
Q752010 · 18 Apr 2010
The radius of curvature of a plane mirror
1. A.is zero
2. B.is infinity
3. C.can be anywhere between zero and infinity
4. D.None of the above
Show answer
Answer: B
Q762010 · 18 Apr 2010
A coin in a beaker filled with water appears raised. This phenomenon occurs because of the property of
1. A.reflection of light
2. B.refraction of light
3. C.total internal reflection of light
4. D.interference of light
Show answer
Answer: B
Q772010 · 18 Apr 2010
A ray of light falls on a transparent glass plate. A part of it is reflected and a part is refracted. The reflected and refracted rays can be perpendicular to each other for
1. A.angle of incidence equal to 90°
2. B.angle of incidence equal to zero
3. C.only one angle of incidence
4. D.more than one angle of incidence
Show answer
Answer: C
Q782010 · 18 Apr 2010
A man with a dark skin, in comparison with a man with a white skin, will experience
1. A.less heat and less cold
2. B.less heat and more cold
3. C.more heat and less cold
4. D.more heat and more cold
Show answer
Answer: D
Q792010 · 18 Apr 2010
Which one among the following denotes the smallest temperature?
1. A.1° on the Celsius scale
2. B.1° on the Kelvin scale
3. C.1° on the Fahrenheit scale
4. D.1° on the Reaumur scale
Show answer
Answer: B
Q802010 · 18 Apr 2010
A particle oscillates in one dimension about the equilibrium position subject to a force $F_{x} (x)$ that has an associated potential energy $U (x)$ . If $k$ is the force constant, which one of the following relations is true?
1. A. $F_{x} (x) = - k x^{2}$
2. B. $F_{x} (x) = - k x$
3. C. $U (x) = \frac{1}{2} k x$
4. D. $U (x) = \frac{1}{2} k^{2} x$
Show answer
Answer: B
Q812010 · 18 Apr 2010
When a body moves with simple harmonic motion, then the phase difference between the velocity and the acceleration is
1. A. $0^{\circ}$
2. B. $9 0^{\circ}$
3. C. $18 0^{\circ}$
4. D. $27 0^{\circ}$
Show answer
Answer: B
Q822010 · 18 Apr 2010
A body is thrown vertically upwards and then falls back on the ground. Its potential energy is maximum
1. A.on the ground
2. B.at the maximum height
3. C.during the return journey
4. D.both on the ground and at the maximum height
Show answer
Answer: B
Q832010 · 18 Apr 2010
Which one of the following pairs does not have the same dimension?
1. A.Potential energy and kinetic energy
2. B.Density and specific gravity
3. C.Focal length and height
4. D.Gravitational force and frictional force
Show answer
Answer: B
Q842010 · 18 Apr 2010
Which one of the following graphs represents uniform motion?
1. A.Option A
2. B.Option B
3. C.Option C
4. D.Option D
Show answer
Answer: D
Q852010 · 18 Apr 2010
How many sixty watt (60 W) bulbs may be safely used in a 240-V supply with 4-ampere fuse?
1. A.4
2. B.8
3. C.12
4. D.16
Show answer
Answer: D
Q872010 · 18 Apr 2010
For a simple pendulum in simple harmonic motion, which of the following statements is/are correct? 1. The kinetic energy is maximum at the mean position. 2. The potential energy is maximum at the mean position. 3. Acceleration is maximum at the mean position. Select the correct answer using the code given below: Code:
1. A.1 only
2. B.2 only
3. C.1 and 3
4. D.2 and 3
Show answer
Answer: A
Q892010 · 18 Apr 2010
The best and the poorest conductors of heat are respectively
1. A.silver (Ag) and lead (Pb)
2. B.copper (Cu) and aluminium (Al)
3. C.silver (Ag) and gold (Au)
4. D.copper (Cu) and gold (Au)
Show answer
Answer: A