NAT IIP Physical Science Physics Preparation Online Test for Pakistani Students

MCQ's Test For NAT II Physical Science Physics

Try The MCQ's Test For NAT II Physical Science Physics

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NAT II Physical Science Physics

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Question # 1

In which of the following states does the incandescent substance give continuous spectrum?

Question # 2

A particle moving in a magnetic field has increase in its velocity, then its radius of the circle

Question # 3

Velocity of sound in a diatomic as is 300 m/sec, what is its rms velocity?

Question # 4

With the increase of temperature viscosity

Question # 5

The half-life of a radio-isotope is 5 years. The fraction of atoms decayed in this substance after 15 years will be

Question # 6

The contrast in the fringes in any interference pattern depends on

Question # 7

Which of the following particles would experience the largest magnetic force when projected with the same velocity perpendicular to a magnetic field?

Question # 8

If tube length of astronomical telescope is 105 cm and magnifying power is 20 for normal setting. Calculate the focal length of objective

Question # 9

If the dot product of two non-zero vectors vanishes, the vectors will be

Question # 10

The essential distinction between X-rays andγ-rays is that

Question # 11

Planck's constant has the dimensions of:

Question # 12

The part of a transistor which is heavily doped to produce large number of majority carriers is

Question # 13

How does the Young's modulus vary with the increase of temperature?

Question # 14

Mechanical waves on the surfaces of a liquid are

Question # 15

When a hydrogen atom is bombarded, the atom is excited to the n = 4 state of hydrogen atom. The energy released when the atom falls from n = 4 state to the ground state is

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 A converging lens is used to form an image on a screen. When the upper half of the lens is covered by an opaque screen
A. Half the image will disappear
B. No change either in size or in intensity
C. Intensity of image will increase
D. Intensity of the image will decrease
2 According to classical theory the proposed circular path of an electron in Rutherford model of atom will be
A. Circular
B. Straight line
C. Parabolic
D. Spiral
3 A sun rise or sun set, the sun looks reddish because:
A. The sun is coldest at these times
B. Of the effects of reflection and refraction
C. The sun is hottest at these times
D. Of the scattering of light
4 Planck's constant has the dimensions of:
A. Energy
B. Momentum
C. Frequency
D. Angular momentum
5 Boyle's law is applicable in
A. Isochoric process
B. Isothermal process
C. Isobaric process
D. Isotonic process
6 An ideal choked (used along with fluorescent tube) would be
A. A pure resistor
B. A pure capacitor
C. A pure inductor
D. A combination of an inductor and a capacitor
7 The frequency of the incident light falling on a photosensitive metal plate is doubled, the kinetic energy of the emitted photoelectrons is
A. Double the earlier value
B. Unchanged
C. More than doubled
D. Less than doubled
8 In a simple harmonic motion (SHM), which of the following does not hold?
A. To force on the particle is maximum at the ends
B. The acceleration in minimum at the mean position
C. The potential energy is maximum at the mean position
D. The kinetic energy is maximum at the mean position
9 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
10 The number of translation degrees of freedom for a diatomic gas is
A. 2
B. 3
C. 5
D. 6

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