# Lecturer Physics Test 18 Online Preparation MCQs Past Papers

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 Test Instructions:- Test Name Lecturer PhysicsÂ Subject Physics Test 18 Test Type MCQs Total Questions 25 Total Time 20 Minutes Total Marks 100
0%

You have 20 minutes to pass to the quiz.

PPSC Lecturer of Physics Practice Test 18

1 / 25

The unmber of significant figures in the length of a bar 6200mm measured by meter rod are:

2 / 25

A simple pendulum completes one oscillation in 2 second. Calculate its length when g=9.8 ms^-2, the time period of simple pendulum is:

3 / 25

To reduce the uncertainty in the timing experiment:

4 / 25

In the British Engineering system, the unit of power is:

5 / 25

The total angular momentum of a system of particles is constant if the net external torque acting on the system is:

6 / 25

In multiplication and division of measurement:

7 / 25

Two forces equal in magnitude but opposite in direction and not acting along the same line constitute a:

8 / 25

Î”V/Î”S is the rate of change of potential with respect to the distance and it is called:

9 / 25

neutron travels a distance of 12 m in a time interval of 3.6Ã—10^-4 s. Assuming its speed was
constant, find its kinetic energy. Take 1.7Ã—10^-27 kg as the mass of neutron:

10 / 25

The electron acquires a speed of 10^6 ms^-1. Find its energy in electron volts:

11 / 25

Earth quake waves are an example of:

12 / 25

The induced current always flows in such a direction as to oppose the change which is giving rise to it,This state of:

13 / 25

1 Kwh=

14 / 25

Zero error of the instrument is a type of:

15 / 25

I=V/R, This equation is known as:

16 / 25

The S.I unit of angular momentum is:

17 / 25

Which of the following is not a correct representation method for prefixes:

18 / 25

The number of significant figures in 5.400 are:

19 / 25

A convex lens of focal length 20 cm, is used to form an erect image which is twice as long as the object. Find the position of the object?

20 / 25

The number 76.85 is rounded off upto two significant figures as:

21 / 25

Which one is the derived quantity in SI units?

22 / 25

The value of the gravitational constant G is:

23 / 25

If A is perpendicular to B, i.e Î¸=90, or one of the two vectors is a null vector then A.B will be:

24 / 25

Calculate the centripetal acceleration and centripetal force on a man whose mass is 80 kg when resting on the ground at the equator if the radius of earth is 6.4Ã—10^6 m:

25 / 25

Which pair of the following is vector: