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

Band spectrum is produced by

Question # 2

A prism splits a beam of white light into its seven constituent colors. This is so because

Question # 3

The dimensional formula of torque is:

Question # 4

The average binding energy of a nucleus inside an atomic nucleus is about

Question # 5

A couple produces

Question # 6

In case of p-n junction diode, at high value of reverse bias, the current rises sharply. The value of reverse bias is known as:

Question # 7

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

Question # 8

A p-n junction has a thickness of the order of:

Question # 9

A piece of fuse wire melts when a current of 15 ampere flows through it.
With this current, if it dissipates 22.5 W, the resistance of fuse wire will be

Question # 10

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

Question # 11

All of the following statements are correct except

Question # 12

A cable that can support a load W is cut into two equal parts. The maximum load that can be supported by either part is:

Question # 13

Bernoulli's equation is based upon law of conservation

Question # 14

The magnetic moment of a circular coil carrying current is

Question # 15

In an L-R circuit, time constant is that time in which current grows from zero to the value

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 A couple produces
A. Purely linear motion
B. Purely rotational motion
C. Linear and rotational motion
D. No motion
2 If a diamagnetic substance is brought near north or south pole of a bar magnet it is
A. Attracted by the poles
B. Repelled by the poles
C. Repelled by north pole and attracted by the south pole
D. Attracted by the north pole and repelled by the south pole
3 The temperature at which the speed of sound becomes double as was at 27°C is
A. 273°C
B. 0°C
C. 927°C
D. 1027°C
4 Who explained the origin of the Fraunhoffer lines?
A. Fraunhoffer
B. Kirchhoff
C. Fresnel
D. Snell
5 Angular momentum is
A. Vector (axial)
B. Vector (polar)
C. Scalar
D. None of these
6 The fundamental unit which has same power in the dimensional formula of surface tension and viscosity is:
A. Mass
B. Length
C. Time
D. None
7 How much water a pump of 2kW can raise in one minute to a height of 10 m, take g = 10 m/s2?
A. 1000 liters
B. 1200 liters
C. 100 liters
D. 2000 liters
8 The magnetic moment of a circular coil carrying current is
A. Directly proportional to the length of the wire in the coil
B. Inversely proportional to the length of the wire in the coil
C. Directly proportional to the square of the length of the wire in the coil
D. Inversely proportional to the square of the length of the wire in the coil
9 Planck's constant has the dimensions of:
A. Energy
B. Momentum
C. Frequency
D. Angular momentum
10 A p-n junction has a thickness of the order of:
A. 1 cm
B. 1 mm
C. 10-6cm
D. 10-12cm

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