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

  • Total Questions15

  • Time Allowed15

NAT II Physical Science Physics

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Question # 1

Which of the following is a scalar quantity?

Question # 2

In Which case does the potential energy decreases?

Question # 3

The henry is the unit for

Question # 4

Which of the following is the only vector quantity?

Question # 5

The nucleus 6C12 absorbs an energetic neutron and emits a beta particle (β). The resulting nucleus is

Question # 6

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

Question # 7

Steel is preferred for making springs over copper. Why?

Question # 8

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

Question # 9

The dot product of two vectors is negative when

Question # 10

At constant volume temperature is increased. Then

Question # 11

A photocell with a constant p.d. of V volt across it illuminated by a point source from a distance of 25 cm. When the source is moved to a distance of 1m, the electrons emitted by the photocell

Question # 12

A point charge Q is placed at the mid-point of a line joining two charges, 4q and q. If the net force on charge q is zero, then Q must be equal to

Question # 13

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

Question # 14

Who explained the origin of the Fraunhoffer lines?

Question # 15

Bernoulli's equation is based upon law of conservation

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    Zarrar Durrani 12 - Jul - 2024 12 Min 04 Sec 13/15
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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 At constant volume temperature is increased. Then
A. Collision on walls will be less
B. Number of collisions per unit time will increase
C. Collisions will be in straight lines
D. Collisions will not change
2 Ultra-violet radiation of 6.2 eV falls on an aluminium surface. K.E. of fastest electron emitted is (Work function = 4.2 eV)
A. 3.2 x 10-21 J
B. 3.2 x 10-19 J
C. 7 x 10-25 J
D. 9 x 10-32 J
3 A p-n junction has a thickness of the order of:
A. 1 cm
B. 1 mm
C. 10-6cm
D. 10-12cm
4 What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?
A. 4 : 5
B. 7 : 9
C. 16 : 25
D. 1 : 1
5 The incorrect statement regarding the lines of force of the magnetic field B is
A. Magnetic intensity is a measure of lines of force passing through unit area held normal to it
B. Magnetic lines of force form a close curve
C. Inside a magnet, its magnetic lines of force move from north pole of a magnet towards its south pole
D. Due to a magnet magnetic lines of force never cut each other
6 To make the frequency double of an oscillator, we have to
A. Double the mass
B. Half the mass
C. Quadruple the mass
D. Reduce the mass to one fourth
7 Who explained the origin of the Fraunhoffer lines?
A. Fraunhoffer
B. Kirchhoff
C. Fresnel
D. Snell
8 A cable breaks if stretched by more than 2 mm. It is cut into two equal parts. How much either part can be stretched without breaking?
A. 0.25 m
B. 0.5 m
C. 1 mm
D. 2 mm
9 For production of beats the two sources must have
A. Different frequencies and same amplitude
B. Different frequencies
C. Different frequencies, same amplitude and same phase
D. Different frequencies and same phase
10 If the earth were to rotate faster, than its present speed the weight of an object will
A. Increase at the equator but remain unchanged at the poles
B. Decrease at the equator but remain unchanged at the poles
C. Remain unchanged at the decrease but decrease at the poles
D. Remain unchanged at the equator but increase at the poles

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  • Khalid Khan

    Khalid Khan

    28 Mar 2024

    paring scheme of mathh

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