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

When light wavelength 300 nm (nanometer) falls on a photoelectric emitter, photoelectrons are liberated. For another emitter, however, light of 600 nm wavelength is sufficient for creating photoemission. What is the ratio of the work functions of the two emitters?

Question # 2

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 # 3

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

Question # 4

With the increase of temperature viscosity

Question # 5

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

Question # 6

The angle between rectangular components of a vector is

Question # 7

Which one of the following phenomena is not explained by Hugen's construction of wavefront?

Question # 8

Planck's constant has the dimensions of:

Question # 9

A planet is observed by an astronomical refracting telescope having an objective of focal length 16 m and an eyepiece of focal length 2 cm.

Question # 10

The number of translation degrees of freedom for a diatomic gas is

Question # 11

The peak voltage in 220 volt A.C. supply is nearly

Question # 12

The direction of induced current is such that it opposes the very cause that has produced it. This is the law of

Question # 13

The nuclear model of atom was proposed by

Question # 14

The henry is the unit for

Question # 15

Which quantity is increased in step-down transformer?

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 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
A. 11%
B. 8%
C. 5%
D. 1%
4 A bullet is shot from a rifle. As a result the rifle recoils. The kinetic energy of rifle as compared to that of bullet is
A. Less
B. Greater
C. Equal
D. Cannot be concluded
5 A 50-volt battery is connected across 10-ohm resistor. The current is 4.5 A. The internal resistance of the battery is
A. Zero
B. 0.5 ohm
C. 1.1 ohm
D. 5.0 ohm
6 The dot product of two vectors is negative when
A. They are parallel vectors
B. They are anti-parallel vectors
C. They are perpendicular vectors
D. None of the above is correct
7 The mass defect for the nucleus of helium is 0.0303 a.m.u. What is the binding energy per nucleon for helium in MeV?
A. 28
B. 7
C. 4
D. 1
8 Shunt required in an ammeter of resistance R to decrease its deflection from 30 ampere to 10 ampere is
A. R/4
B. R/3
C. R/2
D. R
9 The number of turns in the primary coil of a transformer is 200 and the number of turns in the secondary coil is 10. If 240 volts ac are applied to the primary, the output the secondary will be
A. 48A
B. 24V
C. 12V
D. 6V
10 What will be the duration of the day and night (in hour) if the diameter of the earth is suddenly reduced to half its original value, the mass remaining constant?
A. 12
B. 6
C. 3
D. 2

Test Questions

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  • Khalid Khan

    Khalid Khan

    28 Mar 2024

    paring scheme of mathh

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