Physics Diagnostic Tests

202

Created by PLSBOOST

Physics Diagnostic Test

Topic: Physics Diagnostic Test

Quiz Contains: 20 MCQs

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1 / 20

When reverse bias of a p-n junction diode is increased, a stage comes when electric field set up is sufficient to rupture covalent bonds and release a large number of holes and electrons. This breakdown phenomenon is known as:

Elimination Tool

A) Avalanche breakdown

B) Zener breakdown

C) Early effect

D) High – field emission

2 / 20

An overhead tank of capacity 1000 litres has to be filled in 1/2 an hour using a water pump. The tank is kept at a height 10m above ground and the water level is 10m below ground. The opening of the inlet pipe inside the tank is 1.11cm2. Assuming the efficiency of the motor to be 60%, the electric power used is (Neglect viscosity):

Elimination Tool
Hints
Option

Option

A) 118 W

B) 130 W

C) 146 W

D) 198 W

3 / 20

The SI unit of acceleration is ___.

Elimination Tool

A) m

B) m2

C) m/s

D) m/s2

4 / 20

The force applied on unit area to produce any change in the volume or length of a body is called:

Elimination Tool

A) Strain

B) Stress

C) Elasticity

D) Equilibrium

5 / 20

The electromagnetic radiation which moves with high frequency will have _______ wavelength:

Elimination Tool

A) Short

B) Long

C) Unchanged

D) Variable

6 / 20

A stationary wave is formed in a pipe which is open at both ends. If length of pipe is 10 cm, then what is the maximum possible wavelength of the wave?

Elimination Tool

A) 20 cm

B) 5 cm

C) 10 cm

D) 30 cm

7 / 20

A negatively charged particle initially at rest is placed in an electric field that varies from point to point. There are no other fields. Then:

Elimination Tool

A) The particle moves along the electric line of force passing through it.

B) The particle moves opposite to the electric line of force passing through it.

C) The direction of acceleration of the particle is tangential to the electric line of force at every instant.

D) The direction of acceleration of the particle is normal to the electric line of force at every instant.

8 / 20

Let L be the length and d be the diameter of the cross-section of a wire. Wires of the same material with different L and d are subjected to the same tension along the length of the wire. In which of the following cases the extension of the wire will be the maximum?

Elimination Tool

A) L = 200 cm, d = 0.5 mm

B) L=300cm, 1.0 mm

C) L=50cm, d=0.05mm

D) L- 100 cm, d=0.2mm

9 / 20

The time period of a seconds pendulum on the surface of moon becomes:

Elimination Tool

A) 2 sec

B) 1 sec

C) ⅓ sec

D) 12 sec

10 / 20

The energy input to an engine is 60 J, and the work it performs is 15 J. What fraction of the energy input is expelled to the cold reservoir?

Elimination Tool

A) 0.25

B) 75%

C) 1

D) Impossible to determine

11 / 20

For an adiabatic process, the first law of thermodynamics can be written as:

Elimination Tool

A) Work done by the system = decrease in internal energy of the system

B) Work done by the system = increase in internal energy of the system

C) Work done on the system = decrease in internal energy of the system

D) Work done on the system = decrease in internal energy of the system + heat released

12 / 20

During radioactive decay of a nucleus zXA, β emission takes place along with the daughter nucleus. Because of this beta particle emission, the mass number (A) of the parent nucleus:

Elimination Tool

A) Remains constant

B) Decreases by 1

C) Increases by 1

D) Decreases by 2

13 / 20

If a charged particle is at rest but we are seeing it from a train then we observe —————-

Elimination Tool

A) Electric field

B) Magnetic field

C) Both fields

D) None of these

14 / 20

Which of the following X-Rays has the largest intensity?

Elimination Tool

A) Kα X-Ray

B) Kß X-Ray

C) Kγ X-Ray

D) All of these option have the same intensity

15 / 20

A charged particle moving with velocity v, enters a uniform magnetic field B. The direction of v is perpendicular to B. What is the path of the charged particle inside the magnetic field?

Elimination Tool

A) Parabolic

B) Circular

C) Parallel to v

D) Parallel to B

16 / 20

Polarization of light shows that it is:

Elimination Tool

A) Magnetic in nature

B) None of these

C) Electric in nature

D) Both

17 / 20

Molar mass of water is:

PMC Sample 2
Physics
Measurements
Precision and Accuracy
Elimination Tool:

A) 0.018 kg/mol

B) 0.108 kg/mol

C) 0.027 kg/mol

D) 0.0635 kg/mol

18 / 20

A black body is considered ideal when it ____.

Elimination Tool

A) Emits all radiation

B) Absorbs all radiation

C) Both A and B

D) None of these

19 / 20

An apparatus which is used to measure current, voltage and resistance is _____.

Elimination Tool

A) Multimeter

B) Ammeter

C) Galvanometer

D) Voltmeter

20 / 20

The ratio of tensile strength to tensile strain is called:

Elimination Tool

A) Modulus of elasticity

B) Bulk Modulus

C) Young’s Modulus

D) Shear Modulus

Your score is

Pos.	Name	Score	Duration
1	Saad Khan	100 %	1 minutes 10 seconds
2	Shaista	100 %	1 minutes 12 seconds
3	Amna	100 %	1 minutes 15 seconds
4	Infal fatima	100 %	1 minutes 15 seconds
5	Muhammad Junaid Waqas	100 %	1 minutes 18 seconds
6	Muhammad Abu Zar	100 %	1 minutes 19 seconds
7	fff	100 %	1 minutes 23 seconds
8	Eman Nadeem	100 %	1 minutes 28 seconds
9	Vjyg	100 %	1 minutes 36 seconds
10	Talha	100 %	1 minutes 42 seconds
11	1	100 %	1 minutes 50 seconds
12	Amna kalsoom	100 %	1 minutes 50 seconds
13	osaid	100 %	2 minutes 20 seconds
14	Ui	100 %	2 minutes 34 seconds
15	Hafiz Ahmad Hassan	100 %	2 minutes 43 seconds
16	YaSiR	100 %	3 minutes 6 seconds
17	Saim	100 %	4 minutes 10 seconds
18	Laiba	100 %	5 minutes 21 seconds
19	Zubaida	95 %	1 minutes 12 seconds
20	Maryam	95 %	1 minutes 19 seconds
21	Fhff	95 %	1 minutes 19 seconds
22	Haha	95 %	1 minutes 34 seconds
23	Infal fatima	95 %	1 minutes 49 seconds
24	amna	95 %	1 minutes 57 seconds
25	jjj	95 %	2 minutes 6 seconds
26	Ayesha	95 %	2 minutes 14 seconds
27	Muskan	95 %	2 minutes 23 seconds
28	Najeeb Ahmed	95 %	2 minutes 42 seconds
29	Jaweria	95 %	2 minutes 48 seconds
30	Aashan	95 %	3 minutes 1 seconds
31	Alishba	95 %	3 minutes 3 seconds
32	jaweria	95 %	3 minutes 4 seconds
33	Shaila	95 %	4 minutes 14 seconds
34	Muhammad Fareed	95 %	8 minutes 3 seconds
35	abu	95 %	41 minutes 17 seconds
36	Muhammad Abu Zar	90 %	1 minutes 26 seconds
37	Haris Khan	90 %	2 minutes 20 seconds
38	Najeeb Ahmed	90 %	2 minutes 26 seconds
39	Muaz Rana	90 %	2 minutes 30 seconds
40	Swat	90 %	2 minutes 39 seconds
41	Xxxx	90 %	2 minutes 55 seconds
42	Infal fatima	90 %	4 minutes 16 seconds
43	Mehar Naeem	90 %	1 hours 23 minutes 7 seconds
44	Yaseen	85 %	1 minutes 9 seconds
45	Moiz	85 %	1 minutes 50 seconds
46	Hassan	85 %	3 minutes 39 seconds
47	Shaila	85 %	5 minutes 16 seconds
48	N	80 %	3 minutes 38 seconds
49	Muhammad Abu Zar	75 %	3 minutes 9 seconds
50	Farhad Gohar	75 %	9 minutes 42 seconds
51	Zulqurnain	75 %	15 minutes 25 seconds
52	akbar ali	75 %	19 minutes 4 seconds
53	adeen	75 %	21 minutes 11 seconds
54	Hamza	75 %	35 minutes 12 seconds
55	eman	70 %	1 minutes 26 seconds
56	Waqar	70 %	2 minutes 6 seconds
57	Asma	70 %	5 minutes 3 seconds
58	Muhammad Naveed	70 %	5 minutes 50 seconds
59	Jerry	70 %	6 minutes 28 seconds
60	khadija	70 %	8 minutes 33 seconds
61	n	70 %	56 minutes 56 seconds
62	Ismat	65 %	1 minutes 56 seconds
63	Mahad	65 %	3 minutes 12 seconds
64	Yahya	65 %	4 minutes 17 seconds
65	Asfer	65 %	4 minutes 50 seconds
66	Yashfeen	65 %	5 minutes 22 seconds
67	Abdullah	65 %	6 minutes 51 seconds
68	Ali	65 %	8 minutes 55 seconds
69	Najeeb Ahmed	65 %	9 minutes
70	Aaa	65 %	9 minutes 14 seconds
71	Talha	65 %	9 minutes 32 seconds
72	m	65 %	11 minutes 50 seconds
73	champ	65 %	16 minutes 53 seconds
74	Abdullah	65 %	25 minutes 56 seconds
75	kutta	60 %	6 minutes 3 seconds
76	Fi,,A	60 %	6 minutes 9 seconds
77	Wilayat Ali	60 %	6 minutes 49 seconds
78	Jaksb	60 %	8 minutes 14 seconds
79	Abdul Rahman bangwar	60 %	8 minutes 47 seconds
80	dodo	60 %	11 minutes 24 seconds
81	monster	60 %	12 minutes 45 seconds
82	Hahaha	60 %	13 minutes 25 seconds
83	Hamza	60 %	16 minutes 43 seconds
84	Hammad	55 %	2 minutes 55 seconds
85	Sania	55 %	3 minutes 2 seconds
86	Rahim	55 %	4 minutes 7 seconds
87	Irfan	55 %	4 minutes 23 seconds
88	m	55 %	4 minutes 27 seconds
89	Syed Nazir Ali	55 %	4 minutes 36 seconds
90	58392	55 %	4 minutes 52 seconds
91	Nimi	55 %	5 minutes 20 seconds
92	Amna kalsoom	55 %	6 minutes 17 seconds
93	engr.nadeem104	55 %	6 minutes 35 seconds
94	hassab	55 %	6 minutes 41 seconds
95	SuhailAhmad	55 %	6 minutes 54 seconds
96	Ujala Jutt	55 %	6 minutes 55 seconds
97	Gangu bai	55 %	7 minutes 58 seconds
98	umaima junaid	55 %	10 minutes 1 seconds
99	nabiha rehmat	55 %	14 minutes 20 seconds
100	muhammed osaid	55 %	27 minutes 41 seconds
101	Infal fatima	55 %	33 minutes 59 seconds
102	Fatima Navaid	50 %	2 minutes 25 seconds
103	khadija	50 %	2 minutes 45 seconds
104	Nadeem	50 %	3 minutes 38 seconds
105	Nida	50 %	3 minutes 45 seconds
106	Haseeb	50 %	4 minutes 9 seconds
107	Mudasir jamal	50 %	4 minutes 46 seconds
108	All	50 %	5 minutes 56 seconds
109	Waseem Akram	50 %	5 minutes 57 seconds
110	Muhammad Shahzad Khan	50 %	5 minutes 57 seconds
111	Shayan	50 %	6 minutes 15 seconds
112	Muhammad Abu Zar	50 %	7 minutes 22 seconds
113	M. Tariq	50 %	7 minutes 28 seconds
114	Urwah	50 %	7 minutes 56 seconds
115	Eman	50 %	10 minutes 58 seconds
116	Iqra	50 %	11 minutes 50 seconds
117	Moiz	50 %	14 minutes 4 seconds
118	rafaya	50 %	15 minutes 47 seconds
119	Muhammad Zakria	45 %	1 minutes 57 seconds
120	Shafaq	45 %	2 minutes 47 seconds
121	Uigvb	45 %	3 minutes 2 seconds
122	H	45 %	3 minutes 15 seconds
123	Yasir Ali	45 %	3 minutes 18 seconds
124	Taha	45 %	3 minutes 38 seconds
125	Tooba Ahmad	45 %	4 minutes 34 seconds
126	Tslhf	45 %	4 minutes 43 seconds
127	Muhammmad yahya	45 %	4 minutes 44 seconds
128	Hussnain jamil	45 %	4 minutes 50 seconds
129	Awais muazzam	45 %	4 minutes 54 seconds
130	Sr	45 %	5 minutes 37 seconds
131	Muskan Ali	45 %	6 minutes 29 seconds
132	Malaika	45 %	6 minutes 31 seconds
133	Rajhan	45 %	6 minutes 39 seconds
134	Jaweria	45 %	8 minutes 6 seconds
135	Ayesha	45 %	8 minutes 48 seconds
136	Hamza	45 %	9 minutes 52 seconds
137	Fahad sultan	45 %	10 minutes 38 seconds
138	Jan	45 %	11 minutes 42 seconds
139	hadia	45 %	12 minutes 2 seconds
140	Haya	45 %	12 minutes 3 seconds
141	Emaan	45 %	12 minutes 23 seconds
142	Ashan	45 %	40 minutes 59 seconds
143	Yusra Ayaz	40 %	3 minutes 45 seconds
144	Haris Khan	40 %	4 minutes 9 seconds
145	Nazir Ali	40 %	4 minutes 41 seconds
146	Ehtesham Saeed	40 %	5 minutes 5 seconds
147	Muhammad Fareed	40 %	5 minutes 43 seconds
148	Shayan	40 %	6 minutes 23 seconds
149	1234	40 %	6 minutes 25 seconds
150	Kami	40 %	6 minutes 29 seconds
151	kashif ali	40 %	7 minutes 3 seconds
152	Husnain Murtaza	40 %	7 minutes 28 seconds
153	ATTAULLAH	40 %	7 minutes 28 seconds
154	Yasmin	40 %	7 minutes 31 seconds
155	Najeeb Ahmed	40 %	7 minutes 51 seconds
156	A	40 %	8 minutes 10 seconds
157	Shaila	40 %	10 minutes 13 seconds
158	Hafiz Ahmad Hassan	40 %	10 minutes 30 seconds
159	YaSiR	40 %	10 minutes 57 seconds
160	Ahmed Hassan	40 %	11 minutes 31 seconds
161	Laiba	40 %	12 minutes 47 seconds
162	Heer	40 %	14 minutes 21 seconds
163	Muhammad Junaid Waqas	40 %	14 minutes 47 seconds
164	eman	35 %	2 minutes 7 seconds
165	Muhammad Afzaal	35 %	4 minutes 54 seconds
166	Muaz Rana	35 %	5 minutes 9 seconds
167	Arham	35 %	5 minutes 55 seconds
168	Asdf	35 %	7 minutes 48 seconds
169	Azhar Ali	35 %	7 minutes 57 seconds
170	Iraj	35 %	8 minutes 46 seconds
171	Mahad	35 %	9 minutes 22 seconds
172	Alishba	35 %	9 minutes 34 seconds
173	Ali Sher	35 %	10 minutes 36 seconds
174	Zulqurnain Farooq	35 %	13 minutes 47 seconds
175	PLSBOOST	30 %	36 seconds
176	Roohan	30 %	3 minutes 35 seconds
177	B	30 %	4 minutes 6 seconds
178	Fasiha Fatima	30 %	4 minutes 27 seconds
179	Ismat	30 %	4 minutes 32 seconds
180	Ahmad hassan	30 %	5 minutes 17 seconds
181	Yaseen	30 %	5 minutes 20 seconds
182	my	30 %	5 minutes 46 seconds
183	M Naveed	30 %	7 minutes 3 seconds
184	Kashif	30 %	9 minutes 48 seconds
185	Saim	30 %	27 minutes 30 seconds
186	Sohail	30 %	3 hours 47 minutes 27 seconds
187	Mahnoor Siddiqui	25 %	3 minutes 28 seconds
188	Moiz	25 %	4 minutes 15 seconds
189	hajra	25 %	5 minutes 40 seconds
190	Zohaib Ahmad	25 %	9 minutes 18 seconds
191	Muneeb	25 %	9 minutes 42 seconds
192	Manahal	20 %	1 minutes 24 seconds
193	Djdjddj	20 %	1 minutes 35 seconds
194	Rawail	20 %	3 minutes 33 seconds
195	Naveed	20 %	4 minutes 21 seconds
196	Amna	20 %	5 minutes 55 seconds
197	jaweria	20 %	11 minutes 6 seconds
198	Mehar Naeem	20 %	21 minutes 18 seconds
199	malik subhan	15 %	2 minutes 25 seconds
200	Sami	15 %	2 minutes 41 seconds
201	Nimra	15 %	3 minutes 39 seconds
202	Mahad	10 %	50 seconds

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