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

What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?

Question # 2

A boy is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about

Question # 3

A person standing near the track of a fast moving train has tendency to fall towards it because of

Question # 4

The dimensional formula of torque is:

Question # 5

In a Millikan's oil drop experiment the charge on an oil drop is calculated to be 6.35 x 10-19C. The number of excess electrons on the drop is

Question # 6

A man pushes a wall but fails to displace it. He does:

Question # 7

In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie

Question # 8

A photoelectric cell coverts

Question # 9

The percentage errors in the measurements of mass and speed are 2% and 3% respectively. How much will be the maximum error in the estimate of the kinetic energy obtained by measuring mass and speed

Question # 10

Centre of mass is a point

Question # 11

The unit of inductance is equivalent to

Question # 12

A 2 kg body and a 3 kg body have equal momentum. If the kinetic energy of 3 kg body is 10 J, the KE of 2 kg body will be

Question # 13

According to the Hooke's law the force required to change the length of a wire by 'I' is proportional to

Question # 14

Who explained the origin of the Fraunhoffer lines?

Question # 15

The smooth or steady stream-line flow is know as

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Which of the following is a scalar quantity?
A. Density
B. Displacement
C. Torque
D. Weight
2 When n-type of semiconductor is heated
A. Number of electrons increases while that of holes decreases
B. Number of holes increases while that of electron decreases
C. Number of electrons and holes remains same
D. Number of electrons and holes increases equally
3 When boron is added as an impurity to silicon, the resulting material is.
A. n type conductor
B. n type semiconductor
C. p-type conductor
D. p-type semiconductor
4 Angular momentum is
A. Vector (axial)
B. Vector (polar)
C. Scalar
D. None of these
5 Which of the following is not thermo dynamical function?
A. Enthalpy
B. Work done
C. Gibb's energy
D. Internal energy
6 As the electron in Bohr orbit of hydrogen atom passes from stat n = 2 to n = 1, the kinetic energy K and potential energy U change as
A. K two fold, U also two fold
B. K four fold, U also four fold
C. K four fold, U two fold
D. K two fold, U four fold
7 The contrast in the fringes in any interference pattern depends on
A. Fringe width
B. Intensity ratio of the sources
C. Distance between the slits
D. Wavelength
8 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
9 If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be
A. Increasing by a factor of 2
B. Decreasing by a factor of 2
C. Decreasing by a factor of 4
D. Unchanged
10 In a common base transistor circuit, the current gain is 0.98. On changing the emitter current by 5.00 mA, the change in collector current is
A. 0.916 mA
B. 2.45 mA
C. 4.9 mA
D. 5.1 mA

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